Food Handler · General

Which foodborne illness is most associated with improperly cooked ground beef?

Correct answer

E. coli O157:H7 (Shiga toxin-producing E. coli) — associated with undercooked ground beef; ground meat mixes surface bacteria throughout, so it must reach 155°F internal temperature

  1. A Botulism
  2. B E. coli O157:H7 (Shiga toxin-producing E. coli) — associated with undercooked ground beef; ground meat mixes surface bacteria throughout, so it must reach 155°F internal temperature
  3. C Hepatitis A
  4. D Listeria

Why this is the answer

E. COLI O157:H7 AND GROUND BEEF: Shiga toxin-producing E. coli (STEC), including O157:H7, is strongly associated with undercooked GROUND beef. WHY GROUND MEAT: On a whole cut of beef, bacteria are only on the surface (which reaches high temperature when seared); GRINDING mixes surface bacteria throughout the meat, so the interior can harbor pathogens — this is why ground beef must reach 155°F (68°C) for 17 seconds, higher than the 145°F for whole cuts; SYMPTOMS: Severe abdominal cramps, bloody diarrhea; can cause hemolytic uremic syndrome (HUS), a life-threatening kidney complication, especially in children and the elderly; LOW INFECTIOUS DOSE: Very few organisms can cause illness; PREVENTION: Cook ground beef to 155°F; prevent cross-contamination; source from approved suppliers; OTHER PATHOGEN ASSOCIATIONS to know: Salmonella (poultry, eggs); Norovirus (ready-to-eat foods touched by ill handlers); Listeria (deli meats, soft cheeses, refrigerated ready-to-eat); Vibrio (raw shellfish); Hepatitis A (ready-to-eat foods, contaminated handlers); food managers must know pathogen-food associations to target prevention.
Source: Food Manager — Foodborne Illness, E. coli and Ground Beef

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