Rare but serious bacterial disease often spread by ticks or rabbits, causing ulcers, swollen nodes, or pneumonia depending on the infection route.

Red meat allergy that causes delayed allergic reactions hours after eating.

Viral illness from Rocky Mountain wood ticks, causing fever, fatigue, and sometimes a two-phase illness.

Rare viruses causing flu-like symptoms and low blood cell counts, spread by ticks.

Lyme-like illness linked to the lone star tick, causing a bull’s-eye rash and flu-like symptoms, but milder and less understood.