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Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

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