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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.
Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.
![Crossing over during meiosis leads to allele combinations in sex cells that are not present in the p](https://biology-forums.com/gallery/47/medium_234464_20_01_15_10_59_33_202481839.jpeg)
![Skin testing. Note the spot labeled H, which is the positive histamine control, and the spot labeled ...](https://biology-forums.com/gallery/31/medium_398119_12_07_17_5_16_13_316372001.jpeg)