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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.