|
|
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.
Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
![Sceloporus undulates, the eastern fence lizard, is one of the most widely distributed lizard species](https://biology-forums.com/gallery/47/medium_33_31_08_11_2_20_50_164053.jpeg)
![Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_35_06_93842397.jpeg)