Robert F. Kennedy Jr. addressed the worsening avian flu crisis, saying vaccinating birds turns them into “mutation factories." Instead, he recommends letting the birds who survive the virus continue ...

If you vaccinate with a leaky vaccine, in other words a vaccine ... You turn those flocks into mutation factories. 'It's much more likely to jump to animals if you do that.' ...

Because if you vaccinate with a leaky vaccine — in other words ... protect against the disease — you turn those flocks into ...