all of creation is wrong because sin is in the world thats why it needs new heavens and new earth...its pollution at its worst we cannot begin to understand its spread throughout all of creation
Very amusing.
Would you like to actually understand the world you live in?
Influenza viruses: Right all viruses are functionally subjected to the same evolutionary selection pressures as parasites are. As such their is a niche exclusion principle in effect most viruses are specifically customized to live in one specific host to give themselves a survival advantage over their cousin species who will in turn specialize to another host. (Swine flu) and (human flu)
however because pigs and humans are biochemically and physiologically very similar and the species of Swine flu and human flu while specialized to infect pigs and humans can actually infect
each others hosts thus it's easy for a human to get pig flu and vice verser.
Now one thing you have to understand as Viruses are parasites and they use their hosts to reproduce they it isn't in their best interests normally to exterminate their host population... any-more than it make sense for a farmer to slaughter all of his flock. as such Viruses and influenza viruses "REDUCE" their infectivity and lethality. Because they want to make you
sick but not instantly dead. So that your boss threatens you with getting fired and you haul your diseased bum into work and infect everyone there.
The problem is different animals immune systems behave differently however they are biochemically very similar. Birds especally have very elaborate respiratory systems. And the flu virus in birds causes a systemic whole body infection unlike in humans where the influenza virus only infects your lungs. If such a virus gets inside a human then it doesn't make you slightly ill it's deadly as it attacks the heart liver kidneys, Luckly Bird biochemistry differs in terms of surface receptors which makes it difficult to spread between humans.
I will forgo the complex explanation of why this is. It has to do with Salic Acid and nuraimidase groups on the cell surface and Hemagglutinin protease cleavages.
FYI: in the strain information H1N1 the "H" = Hemagglutinin And "N" = Neuramidase
But basically Influenza when they jump species barriers And infect cells ALREADY infected with the native hosts strain of influenza like a pig with swine flu. Or a human with regular flu who gets infected by bird flu as a fluke. The virus DNA can get recombined inside the infected cells and can give rise to "Freak" strains.
These are strains which have the infectivity of normal flu but with the deadly whole body effects of bird flu...
These freak strains can thus escape and cause an enormous amount of damage. killing many people. ultimately such strains die out because they kill all there hosts exterminating themselves from any future evolution. But the short term damage could hypothetically be millions or billions of deaths.