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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.
Green tea is able to stop the scent of garlic or onion from causing bad breath.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.