Once more, the United States doesn't have enough of a vaccine—this time, flu vaccine. Just as the influenza season was about to start, the bad news hit the headlines: The entire output of the California-based Chiron company's influenza vaccine has been condemned by the authorities in the United Kingdom, where Chiron's vaccine, Fluvinir, is manufactured. US authorities had counted on 100 million doses of flu vaccine this year—up from 87 million available last year. About half that amount was to be supplied by Chiron.
Major congenital malformations not linked to first trimester tetracycline use
November 22nd 2024A large population-based study found that first-trimester tetracycline exposure does not elevate the risk of major congenital malformations, though specific risks for nervous system and eye anomalies warrant further research.