Influenza 2014

Sentinel swabs (% pos.): number of sentinels swabs tested for influenza and percentage that tested positive for influenza A or B.

Geographical spread:

0= No activity, no laboratory-confirmed cases, or evidence of increased or unusual respiratory disease activity;

1= Sporadic, isolated cases of laboratory-confirmed influenza infection;

2= Localized, limited to one administrative unit in the country (or reporting site) only;

3= Regional, appearing in multiple but <50% of the administrative units of the country (or reporting sites);

4= Widespread, appearing in >=50% of the administrative units of the country (or reporting sites).