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The influenza viruses that caused the Hong Kong flu (magnified approximately 100,000 times) The Hong Kong flu was the first known outbreak of the H3N2 strain, but there is serologic evidence of H3N1 infections in the late 19th century. The virus was isolated in Queen Mary Hospital. [180]
The influenza viruses that caused Hong Kong flu (magnified about 100,000 times) The Hong Kong Flu was a flu pandemic caused by a strain of H3N2 descended from H2N2 by antigenic shift, in which genes from multiple subtypes reassorted to form a new virus. This pandemic of 1968 and 1969 killed an estimated one million people worldwide.
Flu is known for coming on hard and fast, for example. If you suddenly develop symptoms and it feels like they came out of nowhere, Dr. Russo says it can be a “hint” that you may have the flu.
The 1967–1968 flu season was the last to be dominated by H2N2 before the emergence of H3N2 in 1968 and the consequent "Hong Kong flu" pandemic that lasted until 1970. This season was particularly severe in England and France, in which pneumonia and influenza excess mortality was two to three times greater than in other countries. [ 54 ]
Symptoms may also take longer to present in people with COVID-19, and they may be contagious longer. Though uncommon, testing can reveal if someone is infected with both flu and COVID-19 at the ...
The 1957–1958 Asian flu pandemic was a global pandemic of influenza A virus subtype H2N2 that originated in Guizhou in Southern China. [3] [4] [1] The number of excess deaths caused by the pandemic is estimated to be 1–4 million around the world (1957–1958 and probably beyond), making it one of the deadliest pandemics in history.
Research into the use of interferons to combat influenza began in the 1960s in the Soviet Union, culminating in a trial of 14,000 subjects at the height of the Hong Kong Flu of 1969, in which those treated prophylactically with interferon were more than 50% less likely to suffer symptoms, though evidence of latent infection was present. [7]
The common cold often shares many of the symptoms associated with COVID-19 or the flu but tends to be much milder. You may have a runny nose or congestion, sneezing, sore throat, cough, slight ...