Swine Flu Updates

This report provides an update to the international situation as of April 23, 2010. The World Health Organization (WHO) continues to report updated 2009 H1N1 flu-associated laboratory-confirmed cases and deaths on its Web page. Source: cdc.gov

During week 15 (April 11-17, 2010), influenza activity decreased in the U.S. 37 (2.1%) specimens tested by U.S. World Health Organization (WHO) and National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratories and reported to CDC/Influenza Division were positive for influenza. Source: cdc.gov

This document provides updated information on pregnancy as a risk factor for serious 2009 H1N1-related complications based on findings from a recent study. Source: cdc.gov

This document provides updated information on pregnancy as a risk factor for serious 2009 H1N1-related complications based on findings from a recent study. Source: cdc.gov

CDC has again updated its estimates of the total number of 2009 H1N1 cases, hospitalizations and deaths in the United States since April, 2009. The new estimates incorporate an additional four weeks of flu data from the previous estimates released on March 12, 2010. Source: cdc.gov

This report provides an update to the international situation as of April 16, 2010. The World Health Organization (WHO) continues to report updated 2009 H1N1 flu-associated laboratory-confirmed cases and deaths on its Web page. Source: cdc.gov

As of April 16, 2010, the Aggregate Hospitalizations and Deaths Reporting Activity (AHDRA) has concluded for the 2009-2010 flu season. The AHDRA surveillance system was created specifically in response to the 2009 H1N1 pandemic, and the system will be maintained for quick implementation in the event of another flu pandemic. CDC will continue to track hospitalizations and deaths through its traditional seasonal flu surveillance systems during the 2010-2011 season. Pneumonia and influenza-related deaths in adults and children will be tracked through the 122 Cities Mortality Reporting System. Laboratory confirmed, flu-related deaths in children will continue to be tracked through the Influenza-associated Pediatric Mortality Surveillance system. Laboratory confirmed, flu-related hospitalizations in adults and children will be tracked through the Emerging Infections Program (EIP). Source: cdc.gov

Morbidity and Mortality Weekly Report (MMWR) April 16, 2010 / 59(14);423-430 Source: cdc.gov

Morbidity and Mortality Weekly Report (MMWR) April 16, 2010 / 59(14);423-430 Source: cdc.gov