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.

Oct 14, 2005

Oct 14, 2005

Oseltamivir-resistant H5N1 virus isolated from Vietnamese girl

(CIDRAP News) – A report published today by scientists who isolated an H5N1 virus resistant to oseltamivir from a infected Vietnamese girl further fuels concern over preparedness for a potential and widely anticipated pandemic caused by the strain.

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.

Jan 18, 2007

Jan 18, 2007

Tamiflu-resistant H5N1 strain surfaces in Egypt

(CIDRAP News) – Two patients who recently died of H5N1 avian influenza in Egypt had a strain of the virus that was moderately resistant to oseltamivir (Tamiflu), the World Health Organization (WHO) announced today, but the finding has not prompted new health advisories.

Jun 22, 2007

Jun 22, 2007

FLU CONFERENCE COVERAGE H5N1, other flu viruses show signs of drug resistance

– TORONTO (CIDRAP News) – Scientists are uncovering naturally occurring resistance in influenza to the antiviral drugs that can prevent or treat it, potentially complicating plans by international authorities and many countries to build large drug stockpiles as a hedge against a 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.

Oct 27, 2008

Oct 27, 2008

Drug-resistant flu viruses cause growing concern

– WASHINGTON, DC (CIDRAP News) – Health officials worldwide are becoming increasingly concerned about influenza viruses' resistance to antiviral drugs, which can shut down a flu infection or mitigate symptoms. Flu antivirals are vital for reducing severe illness and death in average flu seasons and could be essential bulwarks against an influenza pandemic if one began.

Mar 19, 2009

Mar 19, 2009

Signs of drug resistance found in African H5N1 viruses

(CIDRAP News) – Scientists who analyzed 67 H5N1 avian influenza viruses from across Africa report that the viruses fall into three distinct sublineages, or families, and that some have mutations that make them resistant to antiviral drugs.

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