Despite the hysteria, Government should think twice before rushing to vaccinate
The dangers of vaccinating against flu if the vaccine is not a perfect match for the disease strain have been highlighted by a British horse study. Andrew Park’s team at the Animal Health Trust near Newmarket, Britain, tested vaccines that were either identical or slightly different to a strain of flu infecting ponies.
The ponies given mismatched vaccine were more likely to become infected and to excrete live flu virus, and also stayed infectious longer than ponies with a well-matched vaccine.