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Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

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.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

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Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Front view of the cranium and facial bones. Front view of the cranium and facial bones.
Microscopic view of plant cells Microscopic view of plant cells
The oral cavity: (A) sagittal section; (B) anterior view as seen through the open mouth. The oral cavity: (A) sagittal section; (B) anterior view as seen through the open mouth.
Stronger threads are created by cold rolling a heat-treated bolt blank instead of cutting the ... Stronger threads are created by cold rolling a heat-treated bolt blank instead of cutting the ...
A cross-sectional view of a typical zirconia oxygen sensor. A cross-sectional view of a typical zirconia oxygen sensor.
The Axis (Superior View) The Axis (Superior View)
Video: Phases of mitosis

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