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H7N9 Clusters |
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Kilt5
V.I.P. Member Joined: March 29 2017 Status: Offline Points: 5740 |
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Posted: November 11 2017 at 12:26am |
they will get longer and longer
and then... H7N9 cluster analysis finds multiple but limited human-to-human spreadA closer analysis of 21 clusters of H7N9 avian flu infections in the first three waves in China's ongoing outbreak suggests that human-to-human transmission is involved in a small fraction of cases. Researchers from China and their collaborators at the US Centers for Disease Prevention and Control (CDC) used a simple framework to gauge the likelihood of human-to-human transmission and published their findings Sep 19 in the Journal of Infectious Diseases. The 21 clusters with 22 infected contact cases were identified by the Chinese Center for Disease Control and Prevention from March 2013 to June 2015. The team looked at detailed epidemiologic information, including timing of contact exposures to people and poultry during the incubation period. Using a framework based on exposure timing to help distinguish person-to-person transmission from a common infectious source such as poultry, they graded the likelihood of exposure as probable, possible, or unlikely. Probable person-to-person transmission occurred in 12 clusters, was possible in 4, and unlikely in 6. Two of the probable clusters involved nosocomial transmission. The investigators found no evidence of sustained transmission among people. The researchers said the framework they employed could be used as a standardized tool to help quickly assess future H7N9 clusters as they occur. Flu Scan for Sep 25, 2017CIDRAP-25 Sep. 2017 A closer analysis of 21 clusters of H7N9 avian flu infections in the first three waves in China's ongoing outbreak suggests that human-to-human ... |
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