What kinds of hazards and challenges must the Lewis and Clark expedition have faced on their journey? List as many answers as you can.

However, Lewis and Clark's crew were overwhelmed with illness, disease and accidents. A list of illnesses they agonized comprises of sunburn, dysentery, colds and flu. Dental problems and toothaches were also a problem. More serious illnesses and disease included small pox, cholera, venereal disease and pneumonia. The Corps of Discovery was flattering a "walking hospital" plagued with exhaustion, dysentery, skin diseases, constipation, malaria, fevers, boils, strained muscles, sore eyes, and venereal disease. That only one man died was luck indeed for Lewis and Clark.