World Health Organization's latest update:
" 16 April 2010 -- As of 11 April 2010, worldwide more than 214 countries and overseas territories or communities have reported laboratory confirmed cases of pandemic influenza H1N1 2009, including over 17798 deaths.
WHO is actively monitoring the progress of the pandemic through frequent consultations with the WHO Regional Offices and member states and through monitoring of multiple sources of information.
The most active areas of pandemic influenza virus transmission currently are in parts of the tropical zones of the Americas, West Africa, Eastern Africa and South East Asia. Although pandemic influenza continues to be the predominant circulating influenza virus worldwide, seasonal influenza type B virus circulation continues to be predominant in East Asia, and is being detected across other parts of Asia, and Europe at low levels. Sporadic detections of seasonal influenza H3N2 viruses have been reported across Asia, Eastern Europe and Eastern Africa most notably in recent weeks in Indonesia and Tanzania. Few seasonal H1N1 viruses were reported in the Russian Federation and Northern China in the last week.
In East Asia, pandemic influenza activity continued to decline and is now at very low levels. The predominant virus associated with influenza-like-illness in the area is now influenza type B viruses, which continue to circulate in China, Mongolia, and Republic of Korea. The Republic of Korea reports an increasing trend of respiratory disease activity associated with detections of influenza type B viruses and small numbers of pandemic H1N1. In China, outbreaks of acute respiratory infections associated with B virus detections are reported but none due to pandemic H1N1. The overall level of respiratory disease activity is similar to the level observed during the same period of 2007-2008 and 2008-2009 seasons. Small numbers of seasonal H3N2 and sporadic seasonal H1N1 viruses were detected in Northern China. In Mongolia, rates of influenza-like illness (ILI) continue to decline and are associated with influenza type B only.
In South and Southeast Asia, the most active areas of influenza transmission are Thailand and Singapore, where pandemic H1N1 is the dominant influenza virus, with co-circulation at lower levels of influenza type B and H3N2. Overall, the intensity of transmission is relatively low. In Thailand, respiratory disease activity has decreased since the previous week. Four percent of sentinel respiratory samples from ILI patients and 2.6% of sentinel respiratory samples from hospitalized patients with pneumonia were found to be positive for pandemic H1N1. Malaysia continues to report occasional outbreaks of respiratory disease in three states, Johor, Pahang, and Melaka. Only Melaka state has reported pandemic H1N1 laboratory confirmed cases, with 4 cases treated in the Intensive Care Unit (ICU). In India overall pandemic H1N1 activity is very low in most states, although in western India pandemic H1N1 cases continue to be reported in low numbers."