How many people died from H5N1 avian flu?
By early 2006, WHO had linked 78 deaths to the virus out of 147 reported cases of H5N1 bird flu in humans….Death Estimates For Major Flu Pandemics of the 20th Century.
What is the percentage mortality for humans infected by the H5N1 influenza virus?
Human cases of H5N1 avian influenza occur occasionally, but it is difficult to transmit the infection from person to person. When people do become infected, the mortality rate is about 60%.
What is the death rate of avian influenza?
As reported by the Center for Disease Control and Prevention (CDC), although human infections with this virus are rare, approximately 60% of people who did become infected have died. The H7N9 virus has been detected in birds and people in China since 2013.
How many cases of H5N1?
Globally, from January 2003 to 8 July 2021, there were 862 cases of human infection with avian influenza A(H5N1) virus reported from 17 countries. Of these 862 cases, 455 were fatal (CFR of 53%). The last case was reported from Lao PDR on 31 October 2020 (source).
Is there a vaccine for H7N9?
Currently, there is no vaccine for H7N9 infection. Scientists have taken early steps to identify a strain of the virus that could be used to make a vaccine if it is needed. The seasonal flu vaccine will not protect against H7N9. Seasonal flu vaccines protect against seasonal influenza viruses.
Is there a SARS vaccine?
What about a SARS vaccine? Vaccine studies for SARS-CoV-1 were started and tested in animal models. An inactivated whole virus was used in ferrets, nonhuman primates and mice. All of the vaccines resulted in protective immunity, but there were complications; the vaccines resulted in an immune disease in animals.
What animal did bird flu come from?
The virus was first detected in 1996 in geese in China. Asian H5N1 was first detected in humans in 1997 during a poultry outbreak in Hong Kong and has since been detected in poultry and wild birds in more than 50 countries in Africa, Asia, Europe, and the Middle East.