Word: pathogenicity
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...which killed 245 in the Zairian town of Kikwit last year, was transmitted to humans from chimpanzees or other forest creatures. Thanks to the latest outbreak, that theory now looks pretty solid. But where is the virus coming from? Chimps seem to be as susceptible as people to the pathogen, so it's unlikely that they can harbor it for long periods of time...
...vaccines. The first, pioneered by Salk, is made from viruses that have been inactivated or "killed." It protects those who are vaccinated but does not stop them from harboring live viruses in their intestines. Should they encounter polio "in the wild," they could become silent carriers and pass the pathogen on to others who have not been inoculated. If polio were to break out--as it did in the U.S. in the '50s, and as it has right now in parts of India--the Salk vaccine would not protect the population at large...
...freckle, the tiny deer tick has sown panic from Montauk to Minneapolis as a carrier of Lyme disease -- an illness that has struck more than 71,000 Americans and left hundreds permanently disabled. Now the minuscule pest is causing even greater alarm. Scientists say deer ticks harbor yet another pathogen, which, unlike the one responsible for Lyme disease, can-in rare cases-actually kill a person in a matter of days...
...virulence of a case depends on the dose of the pathogen," Freeman said...
...implemented the "safe handling" labels on poultry that the industry had fought for many years. Moreover, he appointed a new chief of the USDA's inspection service, Michael Taylor, a respected veteran of the tougher Food and Drug Administration. Taylor has already declared that a deadly E. coli pathogen found in beef is a product of the processing system rather than a naturally occurring bacterium. This new status means that producers can be held liable for food poisoning...