WHO Update: Table 1: Laboratory-confirmed human cases of avian influenza A(H5N1) virus infection (16 January - 8 February 2013)

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NA: not applicable or not available

Public health risk assessment of avian influenza A(H5N1) viruses: Any time influenza viruses are circulating in poultry, sporadic infections or small clusters of human cases are possible especially in people exposed to infected poultry kept in households. However, currently, this H5N1 virus does not appear to transmit easily among people and therefore the risk of community level spread of this virus remains low. Therefore, the public health risk associated with this virus remains unchanged.




Figure 1: Epidemiological curve of avian influenza H5N1 cases in humans by country and month of onset

Fig 2: Map of avian influenza H5N1 cases in humans for 2013

*All dates refer to onset of illness
Data as of 15 February 3013
Source:  WHO/GIP

Continued:  http://www.who.int/entity/influenza/human_animal_interface/Influenza_Summary_IRA_HA_interface_15Feb13.pdf