caused naturally or with human help, page-3

lmao, is this a joke SYSTEMS? The flu virus can change structure very quickly, hence, the reason why we have to get a flu shot every year (the same flu shot doesnt last for more than a year). The flu virus can rapidly mutate which makes the previous years flu shot useless...

Now with this new strain of flu, avian bird flu can easily mutate as it travels through different animals such as birds and pigs, and eventually through humans... Its not surprising that this has happened, and if proven that it can spread from human to human, then this could cause a huge world crisis...

to say that scientists have developed this flu virus is ridiculous, and should be put into the humour section...