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A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

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Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

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Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a
Blood PH Curve Hemoglobin Blood PH Curve Hemoglobin
The blood cells are shown in (a)–(f) and the tissue white blood cells are shown in (g), (h), and ... The blood cells are shown in (a)–(f) and the tissue white blood cells are shown in (g), (h), and ...
Different patterns of a@ and b@hemolysis on a blood agar plate: (a) a@hemolysis: viridian ... Different patterns of a@ and b@hemolysis on a blood agar plate: (a) a@hemolysis: viridian ...
Blood Flow Through Capillaries Blood Flow Through Capillaries
Blood Supply to the Lungs Blood Supply to the Lungs
Video: Calvin cycle (The light-independent reactions )

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