BIOLOGYCAL HAZARDS

BIOLOGYCAL HAZARDS

1. VIRUS

   • They can not reproduce unless they are inside a living cell
   • Are even smaller that bacteria
   • They can survive of day ore ven months
   • HEPATITIS A
     • Contaminted wáter or ice
     • Avoid eating raw foods
   • Diseases caused by contact with people or contaminated food
   • NOROVIRUS
     • Affects the digestive human intestinal tract
     • Causing nausea, vomiting
     • Cook food very well to avoid diseases
   • ROTOVIRUS
     • Causing nausea, vomiting and diarrhea
     • The illness lasts from 4 to 8 days
     • Affects the digestive human intestinal tract

2. parasites

   • they can survive only by living on or inside another organism.
   • They can produce diseases
   • Trichinosis
     • is cause by a worm
     • can be transmitted by pork food
       • you can kill the worm if held at 137°F for ten minutes
     • it can last one a year
   • Anisakiasis
     • it is transmitted by a fish like salmon
       • frozen at –4°F (–20°C) for 15 hours in a blast freezer.
     • you can have vomit , nauseas
     • it is caused by a roundworm,
   • Cyclosporiasis
     • it is transmited principaly by a contamination water
       • When the people wash the food with this contamination water, it can contaminate fruits and vegetables
         • for evit this there are a good hygiene and not use water rain
     • symptons diarrhea, weight loss, appetite loss, and others
     • is caused by a protozoan
   • it live in a guest inside

3. BACTERIA

   • ARE THE MOST ABUNDANT ORGANISMS OF THE PLANET
   • We can found them anywhere
   • they can cause infectious diseases
     • diphtheria
     • leprosy
     • syphilis
     • cholera
     • scarlet fever
   • They are some bacteries important
     • butter
     • cheese
     • vinegar
     • yogurt
   • they can double in number every 15 to 30 minutes.
   • The food is contamiinated by
     • Hands
     • Air
     • Water
     • Other foods
     • Equipment and utensils
     • Coughs and sneezes
     • Insects
   • PROTECTION AGAINST BACTERIA
     • Kill bacteria.
       • temperature of 170°F (77°C) for 30 seconds,
     • Stop bacteria from growing.
       • keep foods below 41°F (5°C) or above 135°F (57°C).
     • Keep bacteria from spreading.

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