51.   But respiratory tract infection is said to be the leading killer.

52.   Examinations of stranded dolphins that died in north Florida showed the animals had lesions in their lungs and respiratory tracts.

53.   He said most of the complaints were related to upper respiratory tract infection and conjunctivitis.

54.   Hydrochloric acid causes burns to skin and damages the tissue of the mucous membranes, upper respiratory tract, eyes, and skin, the prosecutor said.

55.   However, they are known to cause irritation to the skin, the respiratory tract and the eyes when exposed to them over an extended period.

56.   Inside the body, the bacterium multiplies and produces toxins that kill cells that keep the respiratory tract clear.

57.   It would be advisable to avoid air-conditioning as refrigerated air-conditioning is very drying to the respiratory tract.

58.   Less common were upper respiratory tract infection and stomachache.

59.   Many had serious burns not only on their skin, but also in their upper respiratory tract.

60.   Others suffer from respiratory tract infections, skin infections, high blood pressure and joint and back pains.