News & Perspective

Aug 31, 2004

Aug 31, 2004

Flu virus shows surprising resistance to oseltamivir

(CIDRAP News) – Influenza viruses in 18% of a group of Japanese children who were treated with oseltamivir (Tamiflu) developed resistance to the antiviral drug, which is viewed as one of the key defenses against pandemic influenza, according to a new report in The Lancet.

Dec 22, 2005

Dec 22, 2005

Tamiflu resistance in avian flu victims sparks concern

(CIDRAP News) – A new report says oseltamivir-resistant forms of H5N1 avian influenza virus were found in two Vietnamese girls who died of the infection, raising doubts about the antiviral drug that many countries are counting on to help protect them from a potential flu pandemic.

Feb 01, 2008

Feb 01, 2008

Europe says Tamiflu-resistant virus seen in 9 countries

(CIDRAP News) – European officials yesterday reported more evidence that one of the three types of seasonal influenza viruses is showing resistance to oseltamivir (Tamiflu) and said this represents the first clear sign that the resistant variant can spread.

Feb 07, 2008

Feb 07, 2008

Europe reports further increase in Tamiflu resistance

(CIDRAP News) – European health officials today reported signs of an increasing rate of resistance to oseltamivir (Tamiflu) in Europe's predominant subtype of influenza virus, but they cautioned that the rate seen in isolates tested so far may not reflect the real situation.

Aug 25, 2008

Aug 25, 2008

H1N1 flu viruses growing more resistant to Tamiflu

(CIDRAP News) – With influenza season well under way in the southern hemisphere, one of the three kinds of seasonal influenza virus is becoming increasingly resistant to the antiviral drug oseltamivir (Tamiflu), the World Health Organization (WHO) reported last week.

Aug 04, 2009

Aug 04, 2009

PAHO rejects report of resistant H1N1 cases on US-Mexico border

(CIDRAP News) – A Pan American Health Organization (PAHO) official today rejected a media report that quoted her as saying that antiviral-resistant cases of novel H1N1 influenza had been found along the US-Mexican border.

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