Word: viruses
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...disease. There are two forms of smallpox: variola major, which is the most severe and common form, manifests as a widespread, distinctive rash and high fever; and variola minor, which is far less common and also less dangerous. Variola major generally kills about 30 percent of its victims. The virus can be spread by bodily contact or by coughing...
...list of childhood vaccinations. The last naturally occurring case of smallpox in the U.S. was recorded in 1949, worldwide, in Somalia in 1979. In the last 15 years, however, officials have become aware of a bioterrorism threat from countries, including Iraq, believed to have kept samples of the virus...
...President Bush insists there are no direct threats against the U.S. involving smallpox. However, Iraq is believed to have stockpiles of the virus, and the administration believes the public should be informed of and vaccinated against any possible threat that might stem from a war against Iraq or its allies...
...earliest onset and most severe forms of the disease. Yet not all rheumatoid arthritis sufferers have the marker (and vice versa), which makes scientists wonder whether rheumatoid arthritis is really a single disease. Environmental factors may also play a role, although no one knows whether the trigger is a virus, bacteria or something else...
...target girls and possibly boys before they become sexually active. This could prove a tough sell for parents, not to mention conservative politicians and proponents of abstinence. And, of course, any vaccine that contains only HPV-16 and HPV-18 would not protect against other strains of the virus that can cause cancer. So even after a vaccine is commercially available, most women will still need Pap smears...