is a rare, life-threatening skin reaction causing widespread blistering and skin loss.

is an inner ear inflammation causing sudden dizziness, nausea, and hearing changes.

is retinal damage from toxins or medications that can blur central vision.

is retinal damage from antimalarial medicines that can cause vision changes.

is a severe colon swelling that can become life-threatening quickly.

is inflammation of the heart muscle caused by harmful substances.

is a rare illness linked to contaminated rapeseed oil in Spain.

is eye nerve damage caused by harmful effects of toxins.

is fetal harm caused by exposure to harmful drugs or toxins.

is lung inflammation caused by breathing in irritating chemicals or fumes.

is a rare, life-threatening illness caused by toxins from certain bacteria.

is an allergic skin rash caused by poison ivy, oak, or sumac.

is a rare illness caused by toxins from Clostridium botulinum bacteria.

is a parasitic infection people can get from contaminated soil or pets.

is an infection caused by a parasite, often with mild flu-like symptoms.

is a rare thyroid cancer with follicle-forming and trabecular growth patterns.

is a rare, slow-growing cancer that starts in the windpipe.

is a rare cancer that starts in the windpipe (trachea).

is an early-stage cancer limited to the trachea’s inner lining.

is a rare noncancerous tumor that grows in the windpipe.

is a rare airway cancer that starts in mucus-producing tracheal glands.

is a rare cancer that starts in the windpipe (trachea).

is a rare cancer that starts in the windpipe lining.

is a rare birth defect where the windpipe does not form.