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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

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Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Species richness decreases with distance from the source pool. Species richness decreases with distance from the source pool.
Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro Global positioning systems determine latitude, longitude, and altitude by measuring the distance fro
"Visual Acuity Testing, Assessing Distance Vision "Visual Acuity Testing, Assessing Distance Vision
Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change
The distance between the centerline of the main bearing journal and the centerline of the ... The distance between the centerline of the main bearing journal and the centerline of the ...
Development of anoxic zones Development of anoxic zones
Video: Cytotoxic T cell receptors, activation, proliferation, differentiation & action

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