Rare H5N5 Bird Flu Virus Detected In Washington Man: First Known Human Case Explained
Rare H5N5 Bird Flu Virus Detected In Washington Man: First Known Human Case Explained
A Washington resident infected with the H5N5 avian flu was reported to be in critical condition and required hospitalization due to high fever, disorientation, and difficulty breathing.
Written By: Bhavya Gulati | Published : November 19, 2025 11:06 AM IST
Rare H5N5 Bird Flu Detected in Washington Man First Known Human Case Explained
A man in Washington state has become the first person ever to get infected by a bird flu strain called H5N5 which until now has only been seen in birds. Man had some health issues prior and he was hospitalised in early. November. He came down with a very high fever, became confused and had serious trouble breathing. Officials thought so that he probably caught the virus through his backyard, flock of domestic birds like chickens, which had been exposed to wild birds.
Investigation by Washington StateDepartment of health is still going on. According to them, bird flow, strain is something that does not spread easily between humans. Even after looking at this first case, risk of it's spread still remains low.
The virus belongs to group called highly pathogenic. AN influenza specifically the 2.3.4.4 B Clade, which is the newer branch of another bird train known as H5N1.
H5N5 is a type of bird flu virus which is known to infect birds and belongs to H5 family and it also includes strains like H5N1. Something that makes this H5N5 unusual is that it rarely infects humans But In Case of the Washington case is the first confirmed human infection ever reported.
This virus is known to be something that spreads faster in poultry and can cause serious outbreaks. It's spread in humans is quite uncommon and it usually happens after very close. Prolonged contact with infected birds.
How does H5N5 spread?
H5N5 mainly spreads among birds through
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Droppings
Saliva
Contaminated surfaces
Close contact within flocks
Human infection can occur when someone
Handle, sick or dead birds
Cleans coops or cages
Lives around backyard poultry
Gets exposed to wild bird, droppings
The virus does not easily spread from person to person, which is why the public risk remains low.
Symptoms Of H5N5 In Humans
Since this is the first confirmed human case, symptoms are compared to other bird flu infections.
Common symptoms may include
High fever
Cough or sore throat
Breathing difficulty
Fatigue and weakness
Headache
Muscle pain
Run your stuffy nose
Severe symptoms can include
Pneumonia
Confusion
Respiratory distress
Low oxygen levels
The Washington patient developed high fever, confusion, and breathing problems, which required hospitalisation.
H5N5 Prevention: How To Protect Yourself?
If you take some simple precautions, you can protect yourself by eliminating the risk of bird flu infections, especially if you are someone working closely in such environments.
Avoid Contact With Sick Or Dead Birds
Do not touch birds that look ill or are found dead, especially in wetlands, farms or backyard coops.
Good Hygiene Is A Must
You must practise good hygiene, like washing hands after handling animals, using gloves while cleaning bird cages and always wear a mask if you're working in poultry areas.
Report Sudden Bird Deaths
You must prevent wild birds from accessing feed or water. Try keeping coops clean and report sudden bird deaths.
Cook Poultry And Eggs Properly
Make sure you cook your meals properly because heat kills the virus, so make sure chicken, meat and eggs are fully cooked.
When it comes to cure, there is no specific cure for H5N5 yet, but it is treated the same way as other severe influenza infections by taking antiviral medications, oxygen support and even hospital care in severe cases. It's first human case in Washington has raised concerns, but experts believe the risk to the general population remains low and with quick medical attention, the chances of serious infection can be minimised.
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