Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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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.
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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.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Everyone has one nostril that is larger than the other.
Initial velocities of enzyme-catalyzed reactions
Electron microscope video of a needle on a vinyl record
Schematic drawing of initial/terminal (I/T) lymph vessel.
Reductive electron transport sequences in the action of rNDP Reductase
M is the midpoint of a line segment with endpoints A & B. If B is locates on the y-axis, and M ...