Answer:
It was caused primarily by a lack of clean water in the camps.It was caused primarily by a lack of clean water in the camps. , ,
It was the single greatest killer of soldiers during the war.It was the single greatest killer of soldiers during the war. , ,
It only impacted Southern armies because of the hot climate.It only impacted Southern armies because of the hot climate. , ,
It became unimportant after new medication was developed for it.It became unimportant after new medication was developed for it. , ,
Explanation:
It's the first one and the last one
