👉 The Allied Flu, also known as the Asian Flu or Hong Kong Flu, was a pandemic caused by an H2N2 influenza A virus that emerged in 1938 and spread rapidly across Asia, Europe, and North America by 1939. This flu virus is notable for its relatively low mortality rate compared to other influenza pandemics but still caused significant morbidity and mortality, particularly among young adults. The term "Allied Flu" refers to the fact that this pandemic was not only a health crisis but also had geopolitical implications, as it occurred during a period of global tension and conflict, including World War II. The virus spread quickly due to close living conditions and high population density in urban areas, leading to widespread outbreaks and the implementation of public health measures like quarantine and mask-wearing.
