SLIDE 7 Pathogens
- Biological organisms capable of causing
disease
– via infection – via transmission – Bacteria, viruses, fungi, protozoa, chlamydia
Pathogens
– Contagious (person-to-person), airborne, waterborne, foodborne
▪ Generally, microbes (in the vegetative state) do not survive the atmosphere ▪ Coronavirus has been know to survive a couple days on surfaces ▪ Viruses typically don’t last more than a couple hours
Specific Pathogens
▪ Hepatitis B Virus (HBV)
▪ Infects the liver ▪ May cause cirrhosis, liver cancer, or chronic liver disease
▪ Some people may become carriers, not showing symptoms ▪ May exist on surfaces outside body for up to 1 month
▪ Human Immunodeficiency Virus (HIV)
▪ Etiological agent of AIDS ▪ Breaks down body’s immune system, reducing its ability to fight disease
▪ Early symptoms are fever, loss of appetite, weight loss, chronic fatigue, and skin rashes. Later, cancer or infections, such as pneumonia.
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Environmental Education Associates, Inc. SARS-CoV-2 (COVID 19) Awareness Course Presentation