Viral infection of liver Spread through blood or fecal-oral route We have normal defenses to resist infectionĬonditions are not favorable for the pathogen to grow and be transmitted. In many cases, we avoid contracting infections when exposed to microorganisms. Infectious particle made of protein No nucleic acid Reproduction unknownĭNA or RNA surrounded by protein coat Reproduced in living cells Very small * Experts disagree as to whether prions are directly responsible for disease or merely aid an unknown agent in causing disease. Many microorganisms are beneficial or harmless Helped develop the germ theory of infectious disease, stating that disease is caused by microorganismsĭeveloped a set of proofs, known as Koch’s postulates, claiming that microbes cause disease
Throughout history people have attempted to discoverĭeveloped first effective vaccine Used cowpox to vaccinate against smallpox
Our bodies are amazing structures that defend us against infections under Importance of patient education on the proper use of antibiotics 32.1 Explain the historical background of infectious disease prevention.ģ2.2 Identify the types of microorganisms that cause disease.ģ2.7 Explain how the body’s defenses protect against infection.ģ2.9 Identify and describe the various methods of disease transmission.
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