|
|
Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
There are 20 feet of blood vessels in each square inch of human skin.
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
![Deserts differ across the world. (a) Acacia trees between a gravel plain and sand dunes in the Namib](https://biology-forums.com/gallery/47/medium_33_28_08_11_12_01_59_15552009.jpeg)
![Testing the effects of long-term fertilizing on inter-actions between mycorrhizal fungi and plants o](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_40_33_19881124.jpeg)