(CIDRAP News) – A new norovirus variant that emerged in Australia last year has been the leading cause of norovirus outbreaks in United States over the past few months, and federal health officials today warned that illnesses could increase in the months ahead.
(CIDRAP News) Flu activity remained low in the Northern Hemisphere last week, with only a few countries, such as Costa Rica and Cameroon, reporting spikes in the number of cases, the World Health Organization (WHO) said today.
Costa Rica is the only tropical country in the Americas to report increasing numbers of cases, which are primarily influenza A/H3N2, the WHO said.
(CIDRAP News) In a flu vaccine update at a federal advisory meeting today, officials with the US Centers for Disease Control and Prevention (CDC) said early signs suggest flu vaccine uptake in children is on par with last year and that enhanced monitoring for narcolepsy and seizures has turned up no signals of trouble.
(CIDRAP News) A thorough surveillance study from France reinforces findings from other countries about obesity and delayed antiviral treatment as risk factors for severe 2009 H1N1 influenza, while indicating that the pandemic put a greater burden on intensive care units (ICUs) than seasonal flu typically does.
(CIDRAP News) More signals suggest the Southern Hemisphere's flu season is winding down, while activity is low at the start of the Northern Hemisphere's flu season, except in China, which is seeing moderate H3N2 circulation.
(CIDRAP News) A new report says that a cell culture derived influenza vaccine and a conventional egg-based vaccine both proved effective in a large international clinical trial, offering support for those who contend that cell-based vaccines should become an important part of flu vaccine supplies in coming years.