WHO H5N1 report?
More than 700 human infections with Asian HPAI H5N1 viruses have been reported to WHO from primarily 15 countries in Asia, Africa, the Pacific, Europe and the Near East since November 2003. Indonesia, Vietnam and Egypt have reported the highest number of human HPAI Asian H5N1 cases to date.
What is the mortality rate of H5N1?
The extraordinarily high mortality rate of avian influenza (>60% for H5N1; approximately 30% for H7N9) is worrying and reasonably accurate. There have been very few instances of seropositive individuals without clinical signs of infection.
WHO H9N2 cases?
China reports H9N2 avian influenza case confirmed in Hunan province toddler. Chinese health officials reported one new case of human infection with avian influenza A(H9N2) to the World Health Organization (WHO) this week.
Is there bird flu in 2021?
On 21 July 2021, the National IHR focal point of India notified WHO of one human case of avian Influenza A(H5N1) from Haryana state, northern India. This is the first reported case of human infection of influenza A(H5N1) virus in India.
Can H5N1 infect humans?
Humans can be infected with avian, swine and other zoonotic influenza viruses, such as avian influenza virus subtypes A(H5N1), A(H7N9), and A(H9N2) and swine influenza virus subtypes A(H1N1), A(H1N2) and A(H3N2).
What happened H5N1?
No humans have been infected with H5N1, H7N9, H5N6 or H5N8 bird flu in the UK – this includes the type of H5N6 virus recently found in humans in China. Plans are in place to manage any suspected cases.
Is H5N1 a threat?
The highly pathogenic avian influenza virus subtype H5N1 is already panzootic in poultry, with attendant economic consequences. It continues to cross species barriers to infect humans and other mammals, often with fatal outcomes. Therefore, H5N1 virus has rightly received attention as a potential pandemic threat.
What does H stand for in H5N1?
The H stands for one of the 16 different hemagglutinin proteins contained in a virus that allows it to penetrate a foreign body. The “N” stands for another protein in the genetic make-up of a flu virus called neuraminidase, of which there currently exist nine variations.
Why is there no vaccine for bird flu?
The minister further explained that with the long-term use of vaccination either the disease becomes endemic and therefore widespread, or the infection in affected animals gets too difficult to detect. “The Government of India has not permitted use of any vaccine against bird flu in the country.