Sunday, 9 April 2017

The Great Indian Scientists--Synonyms and Antonyms

The Great Indian Scientists
A.P.J. Abdul Kalam (1931-2015)


Synonyms

a)      Affectionate—loving, tender
b)      Epithet—title, caption
c)      Tenacity—perseverance, stability
d)     Monetary—financial, pecuniary
e)      Dwindle—decrease, diminish, contract
f)       Kindred—related, akin
g)      Generous—charitable, humane
h)      Fascinate—delight, cheerful, amaze
i)        Pursue—continue, sustain
j)        Relentless—steady, uncompromising
k)      Eventually—ultimately, prospectively
l)        Pious—religious, devoted
m)    Conceive—begin, initiate
n)      Toil—stress, labour
o)      Renowned—great, noble
p)      Latent—inactive, passive, unused
q)      Harness—utilize, lock, control
r)       Mentor—teacher, counselor, advisor
s)       Humane—generous, kind, merciful
t)       Demit—resign, depress
u)      Mettle—courage, character, stuff

Antonyms

a)      Pinnacle x base
b)      Humble x proud
c)      Perseverance x unstable, fickle
d)     Meagre x excessive
e)      Irrelevant x relevant
f)       Holistic x atomistic, divided, segmented
g)      Indigenous x foreign, external
h)      Culminate x base, inferior
i)        Crucial x unimportant
j)        Objective x subjective
k)      Persuade x dissuade, refutation
l)        Nascent x end, completion
m)    Herculean x easy, small, less
n)      Credible x incredible, unbelievable
o)      Devoid x presence
p)      Converge x distance, diverge
q)      Rigorous x mild
r)       Impeccable x perfect, faultless, flawless

C V Raman(1888-1970)

Synonyms

1.      Eureka—great, special
2.      Distinguished—dignified, august
3.      Conservative—traditional, old-fashioned
4.      Prodigy—miracle, extraordinary
5.      Inquisitiveness—curious
6.      Stellar—outstanding
7.      Luminaries—celebrities
8.      Endeavored—labored, attempted
9.      Phenomenal—remarkable, extraordinary
10.  Coveted—desire, long, yearn
11.  Formidable—alarming, scary, horrifying, shocking
12.  Eulogized—cited, salutation
13.  Volition—accord, choice, free will
14.  Conducive—useful, facilitative
15.  Endowment—talent, gift
16.  Assiduous—active, busy, occupied, engaged
17.  Civilian—social, polite, well-behaved
18.  Mooting—introducing, raising, bringing up
19.  Spontaneously—instinctively, automatically
20.  Mesmerizing—arresting, fascinating, enthralling
21.  Monochromatic—self-coloured, solid
22.  Insinuated—slipped, sneaked, wriggled
23.  Embezzlement—misappropriation
24.  Exaggeration—over emphasize, elaborate, magnify

Antonyms

1.      Absence x presence
2.      Bravery x cowardice
3.      Conceal x display, exhibit
4.      Dainty x undemanding
5.      Discourage x encourage
6.      Feeble x powerful, strong
7.      Generous x selfish, stingy, mean
8.      Hindrance x facilitate
9.      Immense x minute, tiny, little
10.  Inferior x superior
11.  Predicament x unexpected
12.  Sacred x impure
13.  Generous x ingenerous, mean, stingy, selfish
14.  Detrimental x safe, harmless, innocent
15.  Chasm x contiguity                 
 16.Stoutly x tender, weak, delicate              
17. Pioneering x final, last
                                       
                         Homi Jehangir Bhabha (1909-1966)   
  
Synonyms

a.       Exponent—champion, advocate
b.      Visionary—idealistic
c.       Ascribe—attribute, impute
d.      Prominent—towering, protruding, notable
e.       Nuances—differences, variation
f.       Mesmerized—transfixed, attentive
g.      Allegorically—typically, metaphorically
h.      Seminal—original, primary
i.        Epicenter—focus, center
j.        Laureate—honour, fame, appreciable
k.      Hitherto—formerly, once, long ago
l.        Immense—great, large, abundant
m.    Cascade—waterfall, numerous
n.      Collisions—oppositions, clashes, counteraction
o.      Predict—foresee, anticipate
p.      Fruitful—productive, fertile, profitable
q.      Contender—assertion, declare, proposer, advance
r.        Stumbled—failed, slipped, unsuccessful
s.       Formidable—difficult, tough, troublesome
t.        Eradicate—remove, extract, root out

Antonyms

a.       Paternal x maternal
b.      Coveted x indifferent
c.       Disintegrations x combinations
d.      Eminent x lowness
e.       Profound x shallowness
f.       Spontaneously x unimpulsive
g.      Correlate x irrelevant
h.      Redundant x adjunct
i.        Deteriorate x production, existence
j.        Fluctuation x steady
k.      Hinder x cooperate
l.        Inauguration x completion
m.    Confidential x public, open
n.      Accumulate x dispersion
o.      Foremost x last
p.      Indigenous x foreign
q.      Nurture x careless, inattentive
r.        Unanimous x opposition, objected

Jagadish Chandra Bose (1858-1937)
The synonyms and antonyms given under this lesson are the repeated ones from the first lesson (may be printing mistake)
Prafulla Chandra Ray (1861-1944)
Synonyms
1.      Eminent—high, great, elevated
2.      Austere—simple, strict, hard
3.      Proximity—nearness, vicinity
4.      Truant—runaway, escapee
5.      Purists—traditional, conservative
6.      Philanthropist—unselfish, kind, charity
7.      Omission—deficit, break, missing
8.      Germinated—expanded, grew up
9.      Valiant—courageous, brave
10.  Luminaries—light, rays, beam, star, genius, intellectual
11.  Relevant—related, connected
12.  Afflicted—suffering, aching, uneasy
13.  Cynical—unbelieving, incredulous
14.  Convalescence—restore, rejuvenate
15.  Voracious—extensive
16.  Perseverance—continuance, firmness
17.  Indomitable—strong, mighty, powerful
18.  Dexterity—skill, competence, excellence
19.  Unscathed—healthy, unharmed, safe, secure
20.  Conjugate—couple, double, twin
Antonyms
1.      Distinguished x inferior
2.      Gigantic x lowness
3.      Threshold x end, completion
4.      Agitation x order, stability, support
5.      Aspirations x indifference
6.      Dominant x obedient, submissive
7.      Isolated x related
8.      Prolific x unproductive
9.      Unstinted x limited
10.  Gratified x painful
11.  Profound x shallow, less
12.  Oeuvre x incomplete
13.  Exhortation x disapprobation
14.  Monumental x little, less
15.  Definitive x beginning, denial
16.  Monopolistic x monopsonic
17.  Indigenous x extrinsic, foreign
18.  Extensive x small
19.  Dissect x junction, combination
20.  Honorary x paid

Srinivasa Ramanujan (1887-1920)
Synonyms
a.       Significant—important, meaningful
b.      Formal—regular, structural
c.       Foremost—superior, greater, major
d.      Succinctly—briefly, concisely
e.       Reasoned—argue, discuss
f.       Cannons—assembly
g.      Accustomed—used to, habituated
h.      Recent—new, novel
i.        Christened—named, called
j.        Promising—encouraging, inspiring
k.      Consequently—succeeding, latter
l.        Bleak—cold, frigid, raw
m.    Genesis—origin, cause, source
n.      Misleading—misguiding, wrong
o.      Compilation—collection
p.      Abridged—shortened, contracted
q.      Propositions—assumptions, theorems
Antonyms
a.       Diligently x inattentively
b.      Lucid x unclear, complex
c.       Exhaustive x incompleteness
d.      Ironically x expectedly, clearly
e.       Influence x impotence, insignificant
f.       Simultaneously x differing
g.      Elaborate x simple
h.      Intriguing x artlessness
i.        Immense x small, weak
j.        Precarious x steady, secure
k.      Alumnus x drop-out
l.        Patrons x uninfluential
m.    Prolific x unproductive
n.      Dominated x submissive
o.      Exceptional x imitation
p.      Acumen x bluntness
q.      Staunch x dishonest, insincere
r.        Copious x  concise
s.       Anticipation x hopelessness
t.        Prodigious x normal,
u.      Conjecture x proven
v.      Intuition x reasoning
w.    Coherent x irrelevant
x.      Succinctly x elaborately
y.      Espoused x choice

z.       Arcane x mundane, ordinary

The Chief Software Architect

The Chief Software Architect

Short Answer Questions

1 Who is Paul Allen? How did he contribute to Microsoft?

Paul Allen is a senior to Bill Gates at Lakeside School. He is equally interested in computers like Bill Gates. The two boys used to spend most of their time at school's computer. Paul and Gates went into business in 1970. They developed 'Traf-o-data', a computer program that monitored traffic patterns in Seattle.

In 1975, Gates and Paul Allen formed a partnership and named it Microsoft. Microsoft wrote software in different formats for other computer companies, and at the end of 1978, they moved the company to Seattle and it grossed $ 2.5 million.

2 At what age did Gates start showing interest in Computer Programming? How do you think this helped in his success?

Gates was enrolled into Seattle's Lakeside School at 13. The school has bought a teletype terminal for students to use. Bill Gates became entranced with what a computer could do and spent much of his free time working on the terminal. He wrote a tic-tac-toe program in BASIC computer language that allowed users to play against the computer.

This access to computer and interest in it helped him in his success. If he had no access to it, may be, he wouldn't have been this successful.

3 Write a paragraph about Gate's family.

Gates' was an upper middle class family. His father, William H. Gates, Sr., was a lawyer. His mother, Mary, was a teacher for a brief period of time. Later, she devoted her time to helping raise the children and working on civic affairs and with charities. She also served on several corporate boards. Gates had a very close relationship with his mother.

Their family atmosphere was warm and close, and all three children were encouraged to be competitive and strive for excellence.

4 How did Gate's mother support him?

Gates' mother, Mary, would often take him along on her volunteer work in schools and community organizations. Gates wanted to start his own company at 15, but his parents wanted him to finish his school and then pursue law as his career.

Mary was highly respected and well connected with her membership on several corporate boards including IBM. She helped Gates by meeting him with the CEO of IBM. This is the base for Microsoft's expanded business.

5 What was the achievement Gates used to boast about?

Gates graduated from Lakeside in 1973. He scored 1590 out of 1600 in SAT (Scholastic Aptitude Test). It's a feat of intellectual achievement that he used to boast when introducing himself to new people.

6 What was the program which Gates developed along with his friend? How did he market it?

Gates and Allen contacted MITS saying that they were working on a BASIC software program that would run the Altair computer. Roberta asked the boys for a demonstration. Gates and Allen spent next two months writing the software at Harvard's computer lab. The software worked well with the Altair computer. The BASIC software program netted the company a fee and royalties. But Gates found that only 10 percent of the actual users have paid for it. He brought in the license for software. 

7 How did Bill and Allen coin the term 'Microsoft'?

Bill and Allen formed a partnership they called Micro-soft, a blend of 'micro-computer' and 'software'. They dropped the hyphen in less than a year and from then it became 'Microsoft'.

8 What did Gates feel about the free distribution of his software and what did he write in the open letter?

Microsoft's BASIC software became popular with computer hobbyists who obtained pre-market copies and were reproducing and distributing them for free. Only about 10 percent of the people using BASIC in the Altair computer have paid for it. Gates saw the free distribution of the software as stealing, especially when it involved software to be sold. 

In February 1976, Gates wrote an open letter to computer hobbyists saying that continued distribution and use of software without paying for it would 'prevent good software from being written'. He said that it would discourage developers from investing time and money into creating quality software.

9 Why did Bill and Allen sue a case against the new owner of MITS?

Ed Roberts, the owner and President of MITS (Micro Instrumentation and Telemetry Systems), had sold it to another computer company. Now, Bill and Allen had to sue the new owner of MITS to retain the software rights they had developed for Altair.

10 How did the relationship between Microsoft and IBM begin?

The computer industry began to grow with companies like Apple, Intel and IBM developing hardware components. Bill's mother Mary was highly respected and well connected with her membership on several corporate boards including IBM. It was through Mary, Bill Gates met the CEO of IBM. In 1980, IBM was looking for software that would operate their upcoming PC and approached Microsoft.

11 What were the two views about displacement of Netscape Navigator?

The Netscape's Navigator is a web browser which was widely used earlier. Microsoft has included internet explorer in Windows for free. With that, Netscape became less important.
Another view is that, Windows is an improved browser which has more features than Netscape. So, it easily out shined Netscape.

Long Answer Questions

1 Write about the childhood of Bill Gates.

Bill Gates was born into an upper middle-class family. His father, William H. Gates, Sr., was a lawyer. His mother, Mary, was a teacher for a brief period of time. Later, she devoted her time to helping raise the children and working on civic affairs and with charities. She also served on several corporate boards. Gates had a very close relationship with his mother. He had an elder an a younger sister.

Their family atmosphere was warm and close, and all three children were encouraged to be competitive and strive for excellence. They used to conduct games at their summer house. There was a rule that the winner will be gifted and the losers will have to pay the penalty. This instilled in them a spirit to always win. Gates relished in playing board games and excelled in monopoly.

Bill was a voracious reader as a child. He used to spend several hours on reference books such as the encyclopedia. Around the age of 11, his parents started worrying about him. He used to do well in school but seemed to be bored and withdrawn. His parents worried that he might become a loner and hence enrolled him to Seattle's Lakeside School. There, he blossomed in nearly all subjects. He excelled in math and science. He used to do very well in drama and English.

The school bought a teletype terminal for students to use. Gates was fascinated by this first type of computer. He was amazed at what a computer can do. He met Paul Allen, who is three years senior to him. Both boys used to spend most of their time on this computer.

Gates wrote a tic-tac-toe program in BASIC computer language which allowed users to play against computer. Later, at 15, he along with Paul Allen developed 'Traf-o-data'. It's a computer program that helps traffic police to monitor the traffic. They netted $20,000 for their efforts.

Gates and Allen wanted to start their own company, but Gates parents wanted him to finish his education first. They wanted him to become a lawyer.

Gates wrote the SAT (Scholastic Aptitude Test) and scored 1590 out of 1600. He used to boast about it for several years, when he introduced himself to new people.

2 Describe how Gates worked for the development of Microsoft.

Gates was a genius in software development. He is also good at business operations. He led the company as its spokesperson. He personally reviewed every line of code the company shipped, often rewriting code when he saw it necessary.

The computer industry began to grow with companies like Apple, Intel and IBM developing hardware and components. Gates promoted Microsoft well. He met the CEO of IBM with the help of his mother. The IBM approached him for software that would operate their upcoming personal computers. Gates convinced them that he and his company could meet their needs. But Microsoft hadn't developed software that would be compatible with the IBM computers. Gates bought the software form another programmer and sold it to the IBM. When IBM wanted to buy the source code, Gates refused. Instead, he proposed that IBM pay a licensing fee for copies of the software sold with their computers. This allowed Microsoft to license the software they called MS-DOS.

Microsoft also released software called Softcard which allowed Microsoft BASIC to operate on Apple II machines.

Microsoft's growth exploded and staff increased from 25 to 128. Revenue shot up from $4 million to $16 million. Gates and Allen incorporated Microsoft and Gates was appointed President and chairman of the board. Microsoft went global with offices in Great Britain and Japan, and with 30 percent of the world's computers running on its software.

The partnership with IBM ended in 1991 and Microsoft focused its platform on Windows and the NT kernel. Windows became the favoured PC platform. Microsoft's Internet Explorer web browser was also a huge hit in later years. Gates has aggressively broadened the company's range of products. Once it has reached the leading position, he defended it.

In 2000, Gates promoted his long term friend and Microsoft executive Steve Ballmer to the role of Chief Executive Officer (CEO) and took on the role 'Chief Software Architect'. He devoted much of his time for philanthropy, giving away a huge portion of his earnings through the Bill-Melinda charitable foundation. In 2014, Satya Nadella was made the CEO and Gates continues as the Chief Software Architect


Friday, 7 April 2017

The Health Threats of Climate Change

The Health Threats of Climate Change

Short Answer Questions

1 How are mortality and excessive heat related?

Temperature has its impact on health and mortality. People may get high fever/ low fever due to extreme changes in temperatures. They may even result in death. Heat waves are a result of global warming. They bring with them epidemics (infectious diseases) which cause excess deaths. The elderly people, people under medication, the poor and socially underprivileged people are more vulnerable to warmer temperatures. This way, excessive heat causes mortality.

2 How does temperature affect disease causing vectors?

There are countless known infectious diseases. They differ in causative organisms, pathways of transmission, clinical symptoms, response to therapy and results. Temperature spreads the area of these infectious diseases. It also intensifies the disease. These disease causing organisms (vectors) become stronger in hotter temperatures. Various types of flies like sand flies, deer tick flies, tsetse flies, black flies; various types of mosquitoes and snails come under vectors.

3 What are aeroallergens? How are they produced? How does climate interact with them?

Aeroallergens are the biological agents that cause allergy. They are present indoors and outdoors. Their contact with the mucosal surfaces of the eyes and nose causes allergic responses. Extreme climate condition increases the risk of allergy. It also strengthens the agents and intensifies the allergy.

There are two main allergies—Asthma and Hay Fever. For persons with these allergies, change in climate increases the risk of severity. Also, warming causes early pollination. It results in increased duration of the spring. It is spread spatially. Increased exposure to aeroallergens could result in more severe disease, greater ill health, and even mortality (death).

4 Does climate change worsen air pollution directly and what are the effects on mortality due to this?

Climate change could worsen air pollution directly or indirectly. Direct pollution happens through increased ground level ozone production. Increased use of motor vehicles, factory emissions and combustion of fossil fuels release harmful gases. They react with the ultra violet rays of the Sun and pollute the air. Warmer temperature enhances these reactions.

Indirect pollution of air happens due to increased power supply by plants to meet the demands. With warmer temperatures, people use more and more electricity to run the coolers and ACs. This in turn results in global warming and emission of harmful gases, polluting the air.

5 What is public health surveillance and why is it important?

Public health surveillance is a fundamental tool to lessen the effects of climate change on health. It’s a systematic tracking of the health of a population. This data collected on general and particular indicators of diseases help maintaining the public health.

The data is collected, analyzed, reviewed and necessary is taken when needed. There is continued monitoring to track the consequences. There are Centers for Disease Control and Prevention in the United States. They are quick in identifying the emerging infectious agents and diseases. Surveillance system tracks the source, causative organisms and identifies possible measures to be taken. The World Health Organization plays a lead role in surveillance at the global level, interacting with all the nations.

6 What is a heat watch system and how does it help the health problems due to climate change?

Measuring the temperature and forecasting the weather conditions come under heat watch system.  Identifying those who need to be protected during heat waves is done. The area prone to heat waves is anticipated and protective measures are taken. Heat is the single stressor to be avoided to control the health problems.

7 What is the approach used in the system developed and implemented in Philadelphia for weather conditions?

The department of Climatology has identified the heat prone areas and extinctive measures are taken to protect public from heat, there by lessening the health threats. ‘Oppressive air masses’ which cause great mortality is identified. The historical statistical data helped them to anticipate the heat stress that a particular region would take. Anticipated occurrence of such conditions brings protective responses from public health and municipal authorities. This approach is practically implemented in Philadelphia and later extended to other cities round the world. Also, housing style and use of air conditioning would reduce the risk of mortality during a heat wave.

8 Does air quality control help in public health? How can one control and manage it?

Air pollution poses continued threat to public health. Monitoring and managing the quality of air lessens health risks. Air quality regulations, guidelines and management programs should take place. Quality of air could be improved by controlling green house gases; limiting vehicle pollutants and factory emissions; and by planting trees. Continued monitoring of ozone and particulate matter has to take place. These measures will improve the quality of air thereby helping in public health.

9 What is the role of clinicians in public health surveillance?

Clinicians are an integral element of surveillance. Their key role is to recognize the occurrence of sentinel cases that signal a possible outbreak or an emerging illness. They should be alert to strong consequences of climate change and possibility of emerging infections.

When a bunch of similar cases are seen, they should pre assume the possibility of occurrence of any illness (The first cases of AIDS were recognized in the same manner). They should be cautious in identifying the organism and its cause. This would lessen the health threats. Prevention is always better than cure.

10 What are the main conclusions the author has made about climate change and public health?

The author concludes that public communities should understand the health threats of climate change and take necessary measures to lessen the diseases. The public and the government should understand the reasons behind global warming and find out adaptive measures to be followed. Also, preventive measures need to be taken. Being aware of the infectious diseases that are spreading is needed. Places at risk of heat should have warning systems in place to reduce the consequences. Government should track the health consequences of climate change and assess the adaptive measures.

Long Answer Questions

1 What are the different health problems due to climate change, which the author points out?

Climate change has its impact on public health. Exposure to extreme temperatures may lead to severity of illness and also death. The heat waves intensify these health threats. Heat waves are a consequence of global warming. The heat waves are responsible for the epidemics which cause high rate of mortality. Health threats could be divided based on causes--

a)Vector borne diseases

There are countless known infectious diseases. They differ in causative organisms, pathways of transmission, clinical symptoms, response to therapy and results. Temperature spreads the area of these infectious diseases. It also intensifies the disease. These disease causing organisms (vectors) become stronger in hotter temperatures. Various types of flies like sand flies, deer tick flies, tsetse flies, black flies; various types of mosquitoes and snails come under vectors.

Malaria, filariasis, yellow fever, cholera, dengue fever, lyme disease, west nile fever, chagas disease are a few example of vector borne diseases.

b)Aero allergens

Asthma and hay fever are the worsening allergic diseases.
Aeroallergens are the biological agents that cause allergy. They are present indoors and outdoors. Their contact with the mucosal surfaces of the eyes and nose causes allergic responses. Extreme climate condition increases the risk of allergy. It also strengthens the agents and intensifies the allergy.

There are two main allergies—Asthma and Hay Fever. For persons with these allergies, change in climate increases the risk of severity. Also, warming causes early pollination. It results in increased duration of the spring. It is spread spatially. Increased exposure to aeroallergens could result in more severe disease, greater ill health, and even mortality (death).

c)Risk of morbidity due to air pollution

Climate change could worsen air pollution directly or indirectly. Direct pollution happens through increased ground level ozone production. Increased use of motor vehicles, factory emissions and combustion of fossil fuels release harmful gases. They react with the ultra violet rays of the Sun and pollute the air. Warmer temperature enhances these reactions.

Indirect pollution of air happens due to increased power supply by plants to meet the demands. With warmer temperatures, people use more and more electricity to run the coolers and ACs. This in turn results in global warming and emission of harmful gases, polluting the air.
Air pollution increases the health risks. It intensifies the illness.

d)Indirect consequences

There are indirect paths for public health threat. Climate change would lessen the access of safe drinking water and availability of food it results in dehydration, disease and malnutrition. Decrease in resources cause competition. Competition results in high demand. High demand gives poor quality of medical and health services.it may result in migration of people which may lead to economic and social disorder.

2 What are the different measures (adaptive measures) the author talks about to manage health problems due to climate changes?

Climate change has its impact on public health. Exposure to extreme temperatures may lead to severity of illness and also death. The heat waves intensify these health threats. Heat waves are a consequence of global warming. Health threats could be lessened by taking certain adaptive measures.

a)Public health surveillance

Public health surveillance is a fundamental tool to lessen the effects of climate change on health. It’s a systematic tracking of the health of a population. This data collected on general and particular indicators of diseases help maintaining the public health.

The data is collected, analyzed, reviewed and necessary is taken when needed. There is continued monitoring to track the consequences. There are Centers for Disease Control and Prevention in the United States. They are quick in identifying the emerging infectious agents and diseases. Surveillance system tracks the source, causative organisms and identifies possible measures to be taken. The World Health Organization plays a lead role in surveillance at the global level, interacting with all the nations.

b)Dealing with heat—it is of two types

i)Temperature warning systems

Measuring the temperature and forecasting the weather conditions come under heat watch system.  Identifying those who need to be protected during heat waves is done. The area prone to heat waves is anticipated and protective measures are taken. Heat is the single stressor to be avoided to control the health problems.

The department of Climatology has identified the heat prone areas and extinctive measures are taken to protect public from heat, there by lessening the health threats. ‘Oppressive air masses’ which cause great mortality is identified. The historical statistical data helped them to anticipate the heat stress that a particular region would take. Anticipated occurrence of such conditions brings protective responses from public health and municipal authorities. This approach is practically implemented in Philadelphia and later extended to other cities round the world.

ii)Air conditioning

Housing style and use of air conditioning would reduce the risk of mortality during a heat wave.

c)Air quality monitoring

Air pollution poses continued threat to public health. Monitoring and managing the quality of air lessens health risks. Air quality regulations, guidelines and management programs should take place. Quality of air could be improved by controlling green house gases; limiting vehicle pollutants and factory emissions; and by planting trees. Continued monitoring of ozone and particulate matter has to take place. These measures will improve the quality of air thereby helping in public health.

d)Clinical care

Clinicians are an integral element of surveillance. Their key role is to recognize the occurrence of sentinel cases that signal a possible outbreak or an emerging illness. They should be alert to strong consequences of climate change and possibility of emerging infections.
When a bunch of similar cases are seen, they should pre assume the possibility of occurrence of any illness (The first cases of AIDS were recognized in the same manner). They should be cautious in identifying the organism and its cause. This would lessen the health threats. Prevention is always better than cure.