That germ can cause severe diarrhea and dehydration and can result in other very serious complications. The germ is killed by cooking and is no problem on steaks. But in chopped meat, the surface gets mixed up when the patties are formed. If the meat is not completely cooked through and through, that is, no pink on the inside, the bacteria survive and can cause infection. Therefore if you must eat hamburger, you cannot order it rare.
Similar problems occur in chicken products.
The juice that comes with most raw chicken parts is often contaminated with Salmonella or Campylobacter organisms which also cause severe diarrhea and dehydration. Great care must be taken in handling raw chicken so as not to ingest this juice. Handwashing is very important as is washing utensils and cutting boards after using them for chicken. Eggs are also affected and one should not eat eggs unless they are completely cooked, that is, hard, not soft. Until inspection procedures for meats are tightened and enforced, you must exercise caution when preparing these foods.