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Epidemic typhus, also known as louse-borne typhus, is a form of typhus so named because the disease often causes epidemics following wars and natural disasters where civil life is disrupted. [ 4 ] [ 5 ] Epidemic typhus is spread to people through contact with infected body lice , in contrast to endemic typhus which is usually transmitted by fleas .
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.
Symptoms include “sensitivity to light, dizziness, pain behind the eyes, nausea, vomiting, and rash,” the CDC says, while more serious disease includes meningitis, encephalitis, and bleeding.
The epidemic survey conducted proved that the disease was primarily type A botulism, [90] with several cases of type B. [88] The team also discovered that the source of the botulinum was local fermented grain and beans, as well as a raw meat food called mi song hu hu. [89]
That's about one-third of the 58 cases recorded in all of last year, counted in only the first six weeks of 2024, suggesting that a more serious epidemic may loom on the horizon.
Because of the high mortality rate, EEE and WEE are regarded as two of the most serious mosquito-borne diseases in the United States. Symptoms range from mild flu-like illness to encephalitis, coma, and death. [9] Viruses carried by arthropods such as mosquitoes or ticks are known collectively as arboviruses. West Nile virus was accidentally ...
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The epidemic had begun to wane by the first week of March, with excess mortality declining throughout February and falling below the epidemic threshold for the first time by 9 March. In total, excess mortality from pneumonia and influenza was the highest since the 1968–1969 flu season and the initial introduction of the pandemic virus into ...