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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.
The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.