H7N9 bird flu drug resistance concern.

31 maio



Drug resistance has been detected in patients infected with the new bird flu that has emerged in China, say doctors.

The H7N9 virus became resistant to Tamiflu in three out of 14 patients treated with antiviral drugs at Shanghai Public Health Clinical Centre.

The researchers, writing in the Lancet, said resistance emerged with “apparent ease” and was “concerning”.

There have been no new cases of the infection for more than two weeks.


Doctors analysed the virus in 14 patients. All had pneumonia and half needed ventilation to keep them alive.

Treatment with antivirals reduced levels of H7N9 in most patients and led to an improvement in symptoms.

Yet the treatment failed in three patients. Genetic testing of the virus in these patients showed it had acquired the mutations needed to resist the drugs.

The doctors believe that in at least one patient the emergence of resistance was a…

Ver o post original 92 mais palavras


Deixe um comentário

Preencha os seus dados abaixo ou clique em um ícone para log in:

Logotipo do WordPress.com

Você está comentando utilizando sua conta WordPress.com. Sair /  Alterar )

Foto do Google+

Você está comentando utilizando sua conta Google+. Sair /  Alterar )

Imagem do Twitter

Você está comentando utilizando sua conta Twitter. Sair /  Alterar )

Foto do Facebook

Você está comentando utilizando sua conta Facebook. Sair /  Alterar )


Conectando a %s

%d blogueiros gostam disto: