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Author Question: A school psychologist is asked to observe the behaviors of a student. She is concerned that ... (Read 35 times) |
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.