At the Hebrew University of Jerusalem, researchers have found a surprising new way to fight the flu—with help from a compound ...

The emergency of an oseltamivir-resistant strain of avian flu is rare but not surprising, said Jose A. Lucar, MD, associate professor of medicine in the Division of Infectious Diseases at George ...

Methods and Findings: We designed and analyzed a deterministic compartmental model of the transmission of oseltamivir-sensitive and -resistant influenza infections during a pandemic. The model ...

Tamiflu, the same antiviral used to treat ordinary seasonal influenza, is the front line medication recommended for treating highly pathogenic bird flu (Photo by Rui Vieira/PA Images via Getty ...

All three were probably descended from the single strain that initially infected her. Tamiflu resistance has appeared in other strains of the influenza A virus, the broad family that includes H5N1.

Should seasonal flu, H5N1, or any other variant develop resistance to oseltamivir and baloxavir, providers and their patients would have extremely limited options.

The U.S. has a large stockpile of oseltamivir but has less of newer drugs like baloxavir, which has a different mechanism and could be vital if oseltamivir resistance became a problem, Pavia said.

And certainly the current influenza vaccine is effective against this oseltamivir-resistant H1 strain. That's good news for those who have had a flu shot and a little motivation for those who haven't.

In fact, lab studies suggest that Tamiflu-resistant flu viruses may be less infectious. In the end, the most troubling thing about the ECDC study was the 75% resistance rate found in Norway.

Tamiflu-resistant H1N1 viruses have not spread to hospital staff or beyond despite spreading among two clusters of patients in Britain and the United States the World Health Organisation (WHO ...

Scientists have established for the first time that a new strain of bird flu which has killed 36 people in China is, in some cases, resistant to pharmaceutical company Roche's widely-used flu drug ...

Influenza is composed of three subtypes of virus, and last year 12% of one of those subtypes, known as H1, were resistant to oseltamivir. This year almost all of the H1 contingent, 98%, are resistant.