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Did you know?
Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The FDA recognizes 118 routes of administration.
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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.