Home » First particular person dies of H5N2 fowl flu: The most essential factor – News

First particular person dies of H5N2 fowl flu: The most essential factor – News

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First particular person dies of H5N2 fowl flu: The most essential factor – News

The World Health Organization (WHO) has reported the primary case of human loss of life on this planet contaminated with the laboratory-confirmed H5N2 avian influenza virus. The case was reported in Mexico, WHO reported. Several laboratory analyzes confirmed the kind of virus. From 2003 to May 2024, 463 individuals who died from fowl flu have been reported to the WHO from twenty-three nations, however they have been all the time of the H5N1 pressure. SRF science editor Irène Dietschi explains a very powerful questions on fowl flu.

Irene Dietschi

Scientific editor of Radio SRF


Open the folks field
Close the field folks

Irène Dietschi is a science editor at Radio SRF.

How is an individual contaminated?

Mexican authorities haven’t been capable of decide how the 59-year-old man contracted the H5N2 fowl flu virus. But there are robust indications that the person was contaminated by contaminated chickens. As the WHO writes, an outbreak of extremely virulent H5N2 avian influenza viruses was detected in a small poultry farm within the state of Michoacán in March 2024; Michoacán is on the border of the Mexican state the place the deceased lives. Additionally, low pathogenic H5N2 viruses have additionally been circulating in some areas of Mexico for a very long time. H5N2 is a distinct pressure of fowl flu than H5N1, which is at present prevalent in cattle within the USA. It is understood that the deceased in Mexico had a number of earlier diseases. On April 17, he all of a sudden developed a excessive fever, respiration issues, diarrhea and dizziness. Per week later, the person went to the hospital, the place he died the identical day. Analysis of a respiratory swab a month later revealed that he was contaminated with H5N2.

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White chicken

Legend:

Bird flu is normally unfold by means of contact with contaminated birds.

Keystone/MICHAEL BUHOLZER

Has H5N2 developed or has the virus developed from H5N1?

Influenza viruses can change genes, however whether or not this has occurred this time will solely be revealed by additional evaluation of virus sequence knowledge. Also: H5N2 is a long-known subtype of the fowl flu virus and it has unfold all around the world. In the Eighties, for instance, there have been a number of outbreaks of H5N2 in poultry farms within the USA. This virus additionally appeared in Mexico earlier than the flip of the millennium. H5N2 can infect many home and wild birds, together with eagles and ostriches. The virus doesn’t usually make animals sick. All the time, pathogenic kinds are rising, resulting in the loss of life of 1000’s of livestock.

What is the chance that H5N2 will unfold?

Based on present data, the WHO estimates the chance of H5N2 to the overall inhabitants to be low. If obligatory, the chance classification will probably be up to date if new epidemiological or virological findings emerge, for instance new details about H5N2 viruses in native animals. Mexican well being authorities are actually working to seek out the supply of the sufferer’s an infection. No different H5N2 infections have been discovered among the many man’s relations, acquaintances and medical workers. Medical workers will proceed to be monitored and the WHO plans to intently monitor the scenario in Mexico.

What can be the following step up?

There is – solely theoretically – the chance that some folks may grow to be contaminated with H5N2 from chickens after which ship the virus to different nations by journey. According to the WHO, there may be little likelihood of the virus being transmitted from individual to individual.

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