> And scientists who feared another Spanish flu did not know that the 1918 influenza was avian, not swine Because swine are really similar to humans, I see mor

> And scientists who feared another Spanish flu did not know that the 1918 influenza was avian, not swine Because swine are really similar to humans, I see more reason to worry especially about their viruses. They are likely to have multiple adaptations to our own bodies.