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Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.