Patient in Louisiana Hospitalized With First Bird Flu Case in That State

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Medically reviewed by Carmen Pope, BPharm. Last updated on Dec 16, 2024.

By Robin Foster HealthDay Reporter

MONDAY, Dec. 16, 2024 -- Louisiana has reported what appears to be the state's first case of bird flu.

In a health alert issued Friday, state officials said the case involves “a resident of southwestern Louisiana. The individual had exposure to sick and dead birds that are suspected to have been infected with H5N1,” the virus that causes bird flu. The patient has since been hospitalized.

At least 60 human bird flu cases have been diagnosed in the United States so far this year. The majority of the cases have been in California and Washington, and the infections have mostly surfaced in workers who had been in contact with infected poultry or dairy cows.

For now, there's no evidence that the bird flu is spreading from person to person, and the cases have largely been mild, with the main symptom being conjunctivitis, or pinkeye. No deaths have been reported.

Just last week, U.S. health officials reported that the strain of bird flu detected in a California child is similar to the strain spreading through livestock, though the patient had no known exposure to infected animals.

While the findings were not definitive, tests "showed that the virus was very similar to viruses detected in both dairy cattle and poultry as well as to A[H5N1] viruses from previous human infections in dairy workers in California," the health update from the U.S. Centers for Disease Control and Prevention stated.

“This case does not change CDC’s assessment of the immediate risk to the general public, which remains low at this time,” the agency added.

Meanwhile, California health officials reported last week that their investigation into how the child may have been exposed to bird flu is continuing. The child received flu antivirals and has since recovered.

Richard Webby, a virologist at St. Jude Children’s Research Hospital who studies influenza, said it is unlikely that community spread explains the California case. Instead, other animals that could have come into contact with the virus, such as cats, dogs or rodents, might be contributing to its spread.

In fact, research published last week suggested that cats may be unrecognized carriers of bird flu.

Experts have worried for months that the longer the virus spreads among humans and animals, the more likely it will mutate and be able to spread easily between humans.

In the California case, no person-to-person spread of the virus has been detected and the child's family members all tested negative.

Bird flu has been spreading in poultry since 2022, and cases in dairy cows began to crop up in March. The virus was discovered in a pig for the first time erlier this year.

Bird flu infections in people -- nearly all among farmworkers -- have now been confirmed in seven states.

California accounts for the largest share of human bird flu cases in the country, with 34 confirmed infections. Washington has recorded 11 cases, and Colorado 10, CDC data shows.

And earlier this month, Canadian officials announced that a teen in British Columbia had been hospitalized in critical condition with what is believed to be bird flu.

It’s not clear how the teenager picked up the H5N1 virus because the patient is not known to have any contact with infected animals, officials noted. They added that this is the first human case of the virus reported in both the province and Canada.

Across the United States, more than 845 dairy herds in 16 states have been infected since the outbreak in dairy cows was first confirmed last spring. Avian influenza has been spreading in wild and domestic birds in the United States for several years.

“We should be very concerned at this point,” Dr. James Lawler, co-director of the University of Nebraska’s Global Center for Health Security, told the New York Times. “Nobody should be hitting the panic button yet, but we should really be devoting a lot of resources into figuring out what’s going on.”

Sources

  • Louisiana Department of Health, news release, Dec. 13, 2024
  • U.S. Centers for Disease Control and Prevention, health update, Dec. 10, 2024
  • California Department of Public Health, news release, Nov. 19, 2024
  • British Columbia Ministry of Health, news release, Nov. 9, 2024
  • New York Times

    • Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.

    Source: HealthDay

    Posted : 2024-12-17 00:00

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