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1. What are the six components of the chain of infection? How does each component affect the cycle of the
chain of infection?
2. Give a short list of the different ways on how to transmit a certain disease. Provide an example for each.
3. Why do you think proper handwashing is extremely important?
4. How are hazardous materials classified? What is NFPA and its functions?
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- 1. what preventive measure can be applied to prevent G. lamblia infection?/ 2. discuss why those that have poor sanitation and those who experience extreme poverty has been the main target of G. lamblia infection? 3. who has the higher morbidity chances or most likely to be infected by balantidium coli and why? answer ALL QUESTION PLEASEWhich of the following is NOT true of bacterial exotoxins? 1. Important in the pathogenesis of many human diseases 2. Their toxic effect can be systemic, affecting cells distant from the primary site of infection 3. None of the other four answers (All are true of bacterial exotoxins) 4. Different exotoxins may affect different types of cells (e.g., nerves, gastrointestinal mucosa) 5. Some exotoxins have two components, A (active) and B (binding)Normal microbiota provide protection from infection in each of the following ways EXCEPT: Question 3 options: A) they produce antibacterial chemicals. B) they compete with pathogens for nutrients. C) they make the chemical environment unsuitable for nonresident bacteria. D) they produce lysozyme.
- Describe the coronavirus infection and disease spread using as many epidemiological terms as possible. Explain why you are using those terms (in other words, why do the terms you are using describe this disease?) Why have all levels of government pushed the concept of “social distancing”? Is this effective?1. Differentiate between bacterial infection and bacterial intoxication. 2. Discuss the importance of E. coli as part of our intestinal flora. 3. Describe three (3) different types of gastrointestinal diseases caused by bacteria. Be sure to give the name of the specific organism that causes each, describe some common signs and symptoms and discuss treatment for each disease: 4. Define meningitis. Compare and contrast between bacterial and viral meningitis including treatment for each. 5. What is a prion? Describe the impact prions have on the human brain and discuss two prion-associated diseases in humans: 6. What is a vector-borne (vector transmitted) disease? Give an example of a vector borne disease and the vector responsible for causing it:Which of the following statements is incorrect? a. Mucosal surfaces are better than skin surfaces at supporting colonization by commensal microorganisms. b. The skin provides a larger surface area than mucosal surfaces for commensal microorganisms. c. There are ten times as many bacteria residing in the intestinal tract than the number of cells in the human body. d. It is common for commensal bacteria to live in symbiosis with their human hosts. e. During gestation in mammals, a fetus does not have any commensal microorganisms on their skin or mucosal surfaces.
- 1 - Define the term pathogen. a) Using MRSA, NOROVIRUS, ATHLETES FOOT and MALARIA as examples, identify the microorganisms (causal agent) involved in each disease. b)Provide some information on the microorganism for each disease e.g. structure C) Discuss 3 routes of entry that disease causing organisms use to enter the body.1) What is dumping syndrome?what is the cause,symptoms,and the cure of it ? One paragraphAll of the following are true of Lyme disease excepta) it is caused by a spirochete.b) it is transmitted by certain species of ticks.c) it occurs only in the region around Lyme, Connecticut.d) most cases get a rash that looks like a target.e) it can cause heart and nervous system damage.
- Which factors would promote progression of an infection? Select all that apply. a. low microbial virulence b. increased percentage of optimal infectious dose c. correct portal of entry d. genetic profi le of host resistance to microbe e. no previous exposure to this infection f. decreased level of overall health1) It is sometimes best to use two different antibiotics in order to treat an infection. This might happen because of the : -Symbiotic effects of the drugs -Synergistic effects of the drugs -Antagonistic effects of the two drugs 2) What was the first synthetic antimicrobial? - Salvarsan - Tetracycline - SulfonimideWhich of the following statements reflects the pathogenesis of influenza virus? A-The virus frequently establishes persistent infections in the lung B-Viremia is common C-The virus enters the host in airborne droplets D-Viral infection does not kill cells in the respiratory tract E-Pneumonia is not associated with secondary bacterial infections