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2020 ; 72
(1
): 5-7
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Low-income countries are more immune to COVID-19: A misconception
#MMPMIDC7217265
Roy S
Indian J Med Sci
2020[Apr]; 72
(1
): 5-7
PMIDC7217265
show ga
OBJECTIVE: The COVID-19 pandemic has hit countries such as Italy, Spain, France,
UK, and the USA with great force, whereas the number of cases in countries such
as India and most parts of Africa is comparatively lower. Such observation has
made many people believe that the low-income countries may be more immune to
COVID-19. Theories such as warm climate, weaker strain of the virus, and
cross-protection by malaria have been popularly put forward. One such interesting
theory is that since the general people of the low- income countries are mostly
habituated to dwell in lesser hygienic condition and with lesser medical
attention throughout their lifetime; hence, they have naturally acquired better
immunity and more resilience against many infective diseases. MATERIALS AND
METHODS: We sought to investigate the above claim by comparing the case fatality
rate (CFR) as well as number of cases per million population versus the gross
domestic product at purchasing power parity per capita of different countries.
RESULTS: We found that while the number of cases showed a slight decline in the
lower-income countries, the CFR was independent of the financial condition of the
country. CONCLUSION: We conclude that the theory of better immunity in
economically poor countries is a misconception. We suggest that people must come
out of these misconceptions and resort to strict home isolation.