Word: bacteria
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...immune system starts to decline at around age 30. For instance, white blood cells that fight off invaders, such as viruses and bacteria, lose their effectiveness as a person gets older. The gradual weakening of the immune system makes it harder to stave off illness...
...allegedly been dumping as much as 200,000 gal. per day of insufficiently treated wastewater filled with cranberry juice, berry skins and other pollutants into the town's sewers and the Nemasket River from its plant in Middleborough, Mass. Town officials believe that the acidic effluent has killed the bacteria used to process the town's sewage at its treatment center. Ocean Spray, which could be hit with as much as $2.1 million in fines, says it has never endangered the environment and denies the charges...
...migrated south, and most plants are dormant. "The algae that fish feed on will be wiped out in the short term," says Tom Purcell of the Environmental Protection Agency, "but they will easily be replenished from upstream." Then, too, escaped oil will eventually be broken down by naturally occurring bacteria, although the EPA's Ray Germann admits, "No one can tell how long it will take...
...Salt Lake City, doctors who normally see only six new cases each year have treated 150 youngsters in the past 24 months. Worse, physicians, who have never fully understood what causes rheumatic fever, have few clues to explain its re-emergence. The culprit could be an unfamiliar strain of bacteria -- or simply relaxed vigilance against a forgotten...
Searching for an answer, researchers have focused on the bacterial strains that cause strep throat. They isolated bacteria whose presence coincided with the renewed outbreaks of rheumatic fever. The microbes proved to be mucoid strep, a form that was prevalent more than 20 years ago. "It seemed that this may be an important clue," says Edward Kaplan, professor of pediatrics at the University of Minnesota Medical School. "We hadn't had much rheumatic fever, then we get these mucoid strains. Maybe they were responsible." There was a problem, however: the mucoid strains also showed up where there was no rheumatic...