Para1: WHO goal of eradicating malaria with a) global funding and cooperation b) usage of Chloroquine (medicine) and DDT(insecticide)
Para2: Expectation that it will forge global cooperation and technological advances will solve problems. Malaria fight was same time as global fight against small box which got eradicated
Para 3: However malaria could not be eradicated. no reliable vaccine.. DDT has long lasting ill impact on environment and malarial parasite getting immune to Chloroquine
Para 4: Eradication effort failed. Goal changed to controlling malaria but still it has limited success.
1. The passage implies which of the following about future disease eradication programs?A. Intergovernmental organizations should not be too confident about the long-term effectiveness of any technology in their disease eradication programs.
-- It is supported by passage as WHO was confident of eradicating through new technology, however insecticide and medicines proved helpless. ALso the eradication program became a controlling program. So it can be inferred from the passage
This is the answer
B. All disease eradication programs run by intergovernmental bodies are doomed to failure.
-- Extreme choice and not supported. Intergovernmental bodies other than WHO is not discussed as well. Also disease eradication program run by intergovt body is not successful but small pox succeedded.
C. Disease eradication programs can only be successful against relatively mild diseases, such as smallpox.
-- It does not mention small pox is a mid disease and hence unsupported. Also extreme language such as only be successful which is unsupported
D. Eradication programs focusing on diseases carried by mosquitoes cannot be successful.
-- It is an extreme choice as it says eradication program cannot be successful but small pox case sailed through. Not supported
E. The greatest chance for success of disease eradication programs lies in the field of biotechnology, which will open up entirely new avenues for fighting disease.
-- Passage says technology can solve all human ills but it was not so in case of malaria. Also biotechnology is not discussed and hence out of scope
2. The relationship of the Anopheles mosquito, the Plasmodium parasite, and the disease malaria is most similar to which of the following?"no area can ever be declared completely free of the disease as long as there is a single Anopheles mosquito in the area with the Plasmodium parasite in its gut. If the mosquito bites a human and transfers Plasmodium, the cycle starts all over again."
A. Norwegian rats carry fleas that hold in their guts the Yersinia pestis bacteria, which can cause the bubonic plague in infected humans.
-- It talks about possibility of causing plague in infected human but whether through transfer via bite or just through touch etc not mentioned
B. British army officers give Native Americans blankets infected with the Variola virus, which causes smallpox.
-- It says blankets infected with Variola virus cause small box but does not address bite or simple using blanket causes smallpox
C. Tsetse flies that bite humans can transfer the Trypanosoma parasite, which in humans causes African trypanosomiasis, also known as sleeping sickness.
-- It says flies transfer parasite and cause sleeping sickness in humans which is similar to one anopheles that bite human transfer parasite and cause malaria.
This is the answer
D. Parasitic Schistosoma flatworms breed in snails, which then excrete the flatworms into waterways where the flatworms can embed themselves in humans and cause schistosomiasis, also known as bilharzia or elephantiasis.
--Here it says parasite can impact humans by emedding themselves in humans. Option is close to C but here parasite gets excreted and then it may impact humans. However Anopheles bite humans directly and impact. Hence it is out
E. Cows consuming the remains of other cows with mutated prion proteins can develop bovine spongiform encephalopathy, also known as mad cow disease, which can be transferred to humans who eat tainted products from these cows.
--It says cows consume remains of other cows with mutated prion protein develop disease and can transfer when humans eat. It is not the case that humans are involuntarily getting impacted and hence not supported
3. Which of the following would be most representative of the “bold international programs” described in the second paragraph?"The WHO malaria initiative was
typical of the bold international initiatives of the postwar era. Idealists believed that the new model of intergovernmental bodies typified by the United Nations would usher in a new age of international cooperation, and that the striking technological advances of the age would solve all human ills."
A. The Soviet Union demands that its allied nations in Eastern Europe employ a new and advanced type of nuclear reactor in new power generating facilities.
-- it is a demand by Soviet Union with its allied nations... Also new and advanced type of reactor in power generation facilities can work and is not considered bold program
B. Canada experiences a bumper wheat crop because of advances in agronomy, and it distributes its excess wheat to three nations in subSaharan Africa that are suffering from drought.
-- Excesses are distributed to three nations that are suffering from human ill , a drought in those areas. However it is a solo activity helping nations and hence does not encompass international cooperation
C. A consortium of nations in South Asia cooperates in the construction of a new type of desalinization plant that will supply water to all member nations.
-- Here water will be supplied to all member nations coming together and hence from scale of operation may be considered bold as in the case of supplying water to all nations. Also human problem such as salinity of water is addressed and uncertainty around technological challenges remain similar to global eradication of malaria.
This is the answer
D. Teams of French and Italian scientists sponsored by their respective governments race to be the first to develop an effective vaccine against cholera.
-- Here it is an individual race to develop vaccine and hence out
E. Eight national chess organizations from different nations agree to join together into an international chess organization that will work for the standardization and promotion of the game.
-- Eight organizations agree to join into international chess organization to work for promotion and standardization but it does not address in eliminating any human ills. It is just promotion of game
4. Which of the following would most likely describe the reaction of the author of the passage to a call for a new international malaria eradication program?"The WHO malaria initiative was typical of the bold international initiatives of the postwar era"
"Malaria, unfortunately, has been less amenable to eradication"
"No reliable vaccine has ever been developed against malaria, and consequently no area can ever be declared completely free of the disease as long as there is a single Anopheles mosquito in the area with the Plasmodium parasite in its gut."
A. Enthusiastic support
-- It does express support as it says unfortunately it was less amenable, however no enthusiastic support was seen from passage. Author does not express words much. WHO program was typical of bold programs of postwar era so very calculated opinion has been provided
B. Angry contempt
-- Author does not express any contempt and hence out
C. Amused ambivalence
-- Author does not say it has mixed feeling about success. Author just says it is typical of
D. Reluctant condemnation
-- Author is not condemning anything and hence out
E. Pessimistic support
-- It captures the essence as author says unfortunately program did not succeed
Hence this is the answer
5. The passage implies that which of the following would be most important to a successful eradication campaign against malaria?A. A new anti-malarial medicine
-- "1970s began to see disturbing signs that the Plasmodium parasite was developing resistance to quinine and other anti-malarial medicines as quickly as scientists were developing new medicines." Hence we cannot infer production of new anti-malarial medicine... Resistance is developed quickly , so wont solve the problem
B. An effective vaccine against malaria
-- "No reliable vaccine has ever been developed against malaria, and consequently no area can ever be declared completely free of the disease as long as there is a single Anopheles mosquito in the area ". If vaccine is effective it can eradicate malaria, however malaria parasite is developing resistance quickly so even vaccine is effective at one point but may not be reliable at other times.
C. A stronger variant of DDT
--"DDT is great at killing mosquitoes, but it has lasting and widespread consequences for the environment and the health of local populations"... Stronger variant will be problematic to environment and locals
D. Anopheles mosquitoes engineered to reject the Plasmodium parasite
-- "Anopheles mosquito in the area with the Plasmodium parasite in its gut" ... If the mosquito does not have parasite then malaria will not spread through mosquito bite and hence all area can be declared completely free of the disease even if there is a single Anopheles mosquito in the area.
This is the answer
E. Greater international cooperation[/box_in][/box_out][/align]
-- International cooperation has not been discussed so far and hence does not seem to indicate whether this was a problem