(CIDRAP News) – A serologic study from Canada suggests that children and middle-aged adults have little or no immunity to the swine-origin variant H3N2 influenza virus (H3N2v), but about half of adolescents and young adults have some degree of immunity as measured by antibody levels.
(CIDRAP News) – A detailed genetic analysis of an oseltamivir-resistant 2009 H1N1 virus responsible for a cluster of illnesses in Australia in 2011 found evidence that the viruses maintained their fitness when the resistance mutation was present, suggesting that widespread emergence of the strain may be more likely, according to the researchers.
(CIDRAP News) – The tuberculosis toll in Europe continued a slow overall decline in 2010, but the treatment success rate for the disease is slipping as drug-resistant strains of TB grow more common, according to a report released today by the European Union (EU) and the World Health Organization (WHO).
(CIDRAP News) – Flu activity in the United States, Canada, and parts of Europe continues to increase, but for the most part, levels of both mild and severe illness are low compared with past flu seasons, the World Health Organization (WHO) said today.
Activity appears to have peaked in a few Northern Hemisphere locations, such as some countries in Western Europe, North Africa, and northern China, according to the WHO.
(CIDRAP News) – Though flu activity is still below epidemic thresholds in most of the Northern Hemisphere, increases in areas such as Spain, northern Africa, and part of Canada suggest that the season is starting, the World Health Organization (WHO) said today.
(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) Influenza activity in the Southern Hemisphere has mostly returned to off-season levels, with only a few countries in tropical regions reporting significant activity, the World Health Organization (WHO) reported today.