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“This case does not change CDC's overall assessment of the immediate risk to the public's health from H5N1 bird flu, which remains low,” the CDC’s statement reads. ... flu symptoms in humans ...
Transmission and infection of H5N1 from infected avian sources to humans has been a concern since the first documented case of human infection in 1997, [1] due to the global spread of H5N1 that constitutes a pandemic threat. Infected birds pass on H5N1 through their saliva, nasal secretions, and feces. Other birds may pick up the virus through ...
Humans and other mammals can only become infected with avian influenza after prolonged close contact with infected birds. [7] In mammals including humans, infection with avian influenza (whether LPAI or HPAI) is rare. Symptoms of infection vary from mild to severe, including fever, diarrhea, and cough. [8]
A/H5N1 virus can also infect mammals (including humans) that have been exposed to infected birds; in these cases, symptoms are frequently severe or fatal. [2] A/H5N1 virus is shed in the saliva, mucus, and feces of infected birds; other infected animals may shed bird flu viruses in respiratory secretions and other body fluids (such as milk). [3]
Public health officials are concerned that H5N1 will adapt and be able to be transmitted from human to human. That has not happened yet. Even in the 1990s, the human cases had some exposure to a ...
A new variant of the bird flu has infected a dairy worker in Nevada, marking the state's first human case of the H5N1 avian influenza.. The worker was exposed to the D1.1 strain after working with ...
It was shown that H5N1 can persist on milking equipment, which provides a probable transmission route for cow-to-cow and cow-to-human spread. [75] On May 30, it was announced that a second Michigan farm worker from a different dairy farm had been diagnosed with bird flu after exhibiting respiratory symptoms. [76] [77]
The other human case of H5N1 in the U.S. in 2022 was a mild infection as well, Babcock adds. Symptoms of bird flu in humans According to the CDC and experts, the reported signs and symptoms of ...