during six month period, 239 cases of pneumonia occurred in a townof 300 people.

Question

during six month period, 239 cases of pneumonia occurred in a townof 300 people. A clinical case was defined as a fever greater than 39 degrees celcius lasting 2 days with three or more synptoms chills,sweats, severe headaches,cough,aching muscles/joints,fatigue, or feeling ill. A laboratory confirmed case was defined as a positive result for antibodies against Coxelli burnetti. Before the outbreak,2000 sheep were kept northwest of the town. Of the 20 sheep tested from the flock, 15 were positive for C.burnetti antibodies. Wind blew from the northwest, and rainfall was 0.5 cm compared with 7 to 10 cm during each of the previous three years. Name and define this type of disease transmission from animal to humans. How would you determine that the infection in humans of Cociella burnetti was from the population of sheep?

Explanation / Answer

during six month period, 239 cases of pneumonia occurred in a townof 300 people.

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