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When does the WHO declare a pandemic influenza?

A) When any particular country or agency such as the CDC orders the WHO to do so.

B) Once an adequate supply of flu vaccine is available to administer in all countries.

C) When a novel flu virus shows virulence and spreads across several countries.

D) When the novel flu virus shows virulence and sustained viability in one or two countries.


Sagot :

Answer:

Three influenza pandemics occurred during the 20th century: the 1918-19 “Spanish flu,” the 1957-58 “Asian flu,” and the 1968-69 pandemic or “Hong Kong flu.” In 2009, the World Health Organization (WHO) declared a global pandemic of H1N1 flu.

Explanation:

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