|
|
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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.
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.
To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.
According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
![Headsets are ergonomically correct and allow the medical assistant or receptionist to use both hands](https://biology-forums.com/gallery/47/medium_380792_01_06_16_12_37_18_235921.jpeg)
![Many fathers and infants form secure attachments. Fathers’ style of interaction differs somewhat ...](https://biology-forums.com/gallery/47/medium_667187_21_02_17_4_33_09_255882168.png)