| [influenza surveillance results in 2007-2008 winter season in nine provinces of turkey]. | influenza virus infections constitute a serious public health problem owing to their epidemic and pandemic potential. turkish ministry of health established the national influenza surveillance programme in two institutes to detect the virus types leading to the illness and the efficiency of the seasonal vaccine. influenza surveillance is performed by refik saydam hygiene center, national influenza laboratory in nine provinces (which are located at central, northeast, south and east parts of turk ... | 2009 | 19621608 |