Many get swine flu, nothing else

You might think that inter-species diseases are a thing of the movies, but in reality viruses, bacteria, and fungus jump between the species they attack. The recent H1N1 pig flu virus had genes from bird flu, and when it migrated to humans, it acquired human genes. Vaccines try to prevent inter-species viruses and include immunity against variations of H1N1, H3N2, H1N2. Viral mutations are not fiction, and vaccination and potent anti-virals are some of our weapons.

ATLANTA - The largest U.S. analysis of hospitalized adult swine flu patients has found almost half were healthy people who did not have asthma or any other chronic illnesses before they got sick.

Health officials released the surprising results at a news conference Tuesday, noting that 46 percent of 1,400 hospitalized adults did not have a chronic underlying condition.

They have said before that the majority of swine flu patients who develop severe illness have some sort of pre-existing condition, but the new data suggest the majority may be slimmer than previously was thought.

A study of 272 hospitalized swine flu patients, released by the New England Journal of Medicine earlier this month, concluded that 83 percent of adults and 60 percent of children had underlying conditions.

However, health officials cautioned that the new analysis is preliminary and did not count obesity as an underlying condition. Earlier research has suggested obesity could be a separate risk factor for severe swine flu illness. Further analysis that counts obesity could change the results, said a spokesman for the Centers for Disease Control and Prevention.

The CDC looked at 1,400 adults and more than 500 children with swine flu who were hospitalized in 10 states at medical centers participating in a special disease surveillance network. The hospitalizations occurred from April through the end of August.

Looking at a larger number of hospitalizations was important because "we wanted to make sure that we weren't mis

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Biotechnology advances have allowed us to understand viruses, bacteria, and other pathogens better than ever before. We use genetic engineering, DNA sequencing, microarrays, PCR, and other genomic and proteomic tools to understand pathogens better. We've also developed vaccines and potent antivirals and antibiotics that fight diseases. A proof of this is how much longer life expectancy is Today than it was before the 1940's when antibiotics were invented.

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