New H7N9 bird flu resistant to drugs
London: With the new bird flu that has emerged in China, drug resistance has been detected in patients infected.
The H7N9 virus became resistant to Tamiflu in three out of 14 patients treated with antiviral drugs at Shanghai Public Health Clinical Centre, the BBC reported.
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 direct consequence of treatment with Tamiflu.
Such antiviral drugs are the only way of treating the infection.
The researchers said: "The apparent ease with which antiviral resistance emerges in H7N9 viruses is concerning, it needs to be closely monitored and considered in future pandemic response plans."
More from India
More from World
More from Sports
More from Entertaiment
- 6 leaders were in contact with Dawood Ibrahim till 26/11: Report
- Rameswaram waits to give final salute to Dr Abdul Kalam
- DNA analysis of Yakub Memon's final moments in Nagpur Jail
- SC order on Yakub Memon huge disappointment, setback: Owaisi
- Last rites of Gurdaspur attack martyr Baljit Singh in Kapurthala
- APJ Abdul Kalam's funeral to be held in Rameswaram; PM Modi to attend
- Yakub Memon hanged in Nagpur jail: As it happened
- Has President Pranab Mukherjee rejected Yakub Memon's mercy plea?
- Yakub Memon's body handed over to family, tight security in Mumbai
- People storm to watch Salman Khan's 'Bajrangi Bhaijaan' in Pakistan, leave hall teary-eyed