(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) – The number of swine-origin H3N2 (variant H3N2, or H3N2v) influenza cases in the United States has climbed by 9 in the past week, to 305, and another rare swine-origin variant, H1N1v, has cropped up in Missouri, the Centers for Disease Control and Prevention (CDC) reported today.
(CIDRAP News) – The number of US gastroenteritis deaths more than doubled in 8 years, with Clostridium difficile and norovirus as the two most common culprits, researchers reported today at an infectious disease conference.
(CIDRAP News) – A recent set of articles in Vaccine has confirmed previous preliminary reports that young children who received influenza shots in the 2010-11 flu season had a slightly increased risk of a febrile seizure after vaccination, especially if they received a new pneumococcal vaccine at the same time.
(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.