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The team is producing updated versions of the vaccine that more closely match strains circulating today.
The South Asian 2.3.2.1a clade is known to circulate in birds in India and Bangladesh.
The additions split the current genotypes of the mosquito-borne virus into "major" and "minor" lineages.
Tests on an eye swab were positive in testing at the CDC, though respiratory samples were negative.
Of the vaccinated patients, 97% had 2 doses of COVID-19 vaccine.
The child contracted the virus in India, which continues to report sporadic H5N1 outbreaks in poultry.
Recent healthcare system advancements such as higher vaccination uptake and public health interventions likely contributed to the decline, the authors say.
Two years into a global effort to tackle the problem, STIs are heading in the wrong direction, while HIV and viral hepatitis cases aren't falling quickly enough.
Officials have identified a fill-and-finish opening on a production line at a vaccine company partner and said the activity won't disrupt the supply of seasonal flu vaccine.
The study looked at the incidence and epidemiology of carbapenem-resistant and extended-spectrum beta-lactamase–producing Enterobacterales in US kids.
Among 49 jurisdictions with H5 virus testing capacity, 29 (59%) reported testing respiratory specimens from symptomatic people since January 2022.
The group will use the H5 probe to test samples from all 190 WastewaterSCAN sites and share the information with local public health officials and on its dashboard.
The health ministry said two JN.1 variants, KP.1 and KP.2, make up more than two-thirds of Singapore's COVID cases.
The tool may also help address any family hesitancy about giving the RSV monoclonal antibody by demonstrating the infant's risk profile, the authors say.
The maternal vaccine will target neonatal sepsis caused by Klebsiella pneumononiae.
The risk of influenza was found to be elevated in people who received the vaccine only in the previous season.
In other developments, H5N1 has been detected in cats from South Dakota with no known links to poultry or dairy herd outbreaks.
About 55,500 patients were flagged for long COVID, compared with 2.1 million who self-reported the condition in a community infection survey.
The CDC's alerts detail recent travel-related cases and urge vaccination for those traveling to Saudi Arabia for the upcoming Hajj or Umrah pilgrimages.
The country noted an uptick in clade 1 cases in 2023 and 2024, with 19,919 suspected cases reported.
