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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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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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Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

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Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Cellular movements caused by the actions of flagella and cilia Cellular movements caused by the actions of flagella and cilia
Griffith's experiments that showed the transformation of bacteria by a “transfor Griffith's experiments that showed the transformation of bacteria by a “transfor
Elongation stage of translation in bacteria Elongation stage of translation in bacteria
The explosion of the Maine in Havana harbor, killing 260 men, caused much speculation in the newspap The explosion of the Maine in Havana harbor, killing 260 men, caused much speculation in the newspap
Pathogenic microorganisms include (A) bacteria, (B) viruses, (C) protozoa, and (D) helminths. Pathogenic microorganisms include (A) bacteria, (B) viruses, (C) protozoa, and (D) helminths.
A sampling of bacterial diversity. Most bacteria do not cause disease. A sampling of bacterial diversity. Most bacteria do not cause disease.
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