Causative organism

• Clostridium botulinum

Symptom

• Latency period 2 hours to 8 days (usually 12 to 36 hours)
• Symptoms Nerve palsy, thirsty, tongue entanglement, limb numbness
• Remarks There are types A to G, and poisoning is caused by A, B, E

Source of pollution

• Soil and animal feces are contaminated sources
  E type is river mud
• It is also detected from internal organs of fish caught in Tohoku and Hokkaido
• honey

Characteristic

• Type A die with heat at 100 degrees and die in 360 minutes
• E type is weak to heat 100 degrees and die in 5 minutes
• The fatality rate of A and B type is 70%
• The fatal rate of E type is 30%
• Extremely poisonous
• 3. It grows even at low temperature of 3 degrees

prevention

• Keep cans and retort food preservation methods
• Canned foods and retort foods are eaten as soon as possible after opening
• Wash and sterilize when bottling or vacuum packing etc. at home
• Heat at 80 ° C for 30 minutes or 100 ° C for several minutes immediately before meals
• Infants under 1 year old will not give botulinum suspected of contamination

Summar

• There are types A to E, poisoning is A, B, E
• AB is strong against heat and the fatal rate is 70%
• E is relatively weak to heat, the fatality rate is 30%
• Pay particular attention to infants under 1 year old (eg honey)
• Correct retention period and preservation method for canned food and retort food
• Canned foods and retort foods can be eaten as soon as possible after opening

Remarks

「食中毒」一覧表