Some of the world's leading makers of flu vaccines say they could make hundreds of millions of bird flu shots for humans within months if a new strain of avian influenza ever jumps across the species divide
Less reassuring, however, is that most of the potential human doses are earmarked for wealthy countries in long-standing preparedness contracts, global health experts and the companies said.
An international framework for pandemic flu allocates 10% of global supply for the World Health Organization to share with low- and middle-income countries. By contrast, the WHO is seeking guarantees of 20% global supply for other types ofThe U.N. agency said it has signed legally binding agreements with 14 manufacturers for 10% of their pandemic flu vaccine “as it comes off the production line", in a mix of donated doses and doses to be bought by the agency at an affordable price.
In all, the WHO said there are close to 20 licensed vaccines against the broader H5 strain of flu. Existing antiviral treatments for people already infected will also help mitigate the impact. Experts have long advocated for new approaches in developing vaccines, both for seasonal and pandemic flu. COVID proved the potential of mRNA technology to adapt more quickly to changing viruses because the vaccines use genetic information from the pathogen, rather than having to grow the virus itself.
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