What is herd immunity - Study guides, Class notes & Summaries

Epidemiology Triangle - - depends on the extent of the host's exposure to an agent, the strength or virulence of the agent, and the host's genetic or immunological susceptibility. - also depends on the environmental conditions existing at the time of exposure Incidence Rate - describe the occurrence of new cases of a disease or condition in a community over a period of time relative to the size of the population at risk for that disease or condition during that same time pe...

Kuby Immunology Exam Answers All 100% Correct Immunity - Answer - a state of protection from infectious disease Variolation - Answer - dried crusts derived from smallpox pustules were either inhaled or inserted into small cuts in the skin Edward Jenner - Answer - made smallpox vaccine from cowpox Louis Pasteur - Answer - grew bacterium that caused fowl cholera Herd Immunity - Answer - the decrease in likelihood that a person will become infected with a pathogen if the majority of ...

BPH 206: FINAL EXAM Questions With Correct Answers What is disease transmission? - answerthe passing of a communicable disease from one infected individual or host to another Examples: -Acquiring rabies from a dog bite -Catching influenza from a co-worker -Transmitting syphilis to a sex partner What is herd immunity? - answerGeneralized resistance to a particular disease within the population that arises because the majority of people have developed immunity to the condition What is lo...

what are the steps of the scientific process? - Answer--observe -suggest a hypothesis -generate predictions -design tests of the predictions -test the hypothesis -analyze results -accept, reject or modify hypothesis what causes white nose syndrome - Answer-white fungus on the noses of bats what affects might bat mortality have on affected regions? - Answer-they disrupt agriculture upwards of 22 billion because they don't eat the insects that affect the plants why is science considered...

Children receiving chemotherapy or bone marrow transplants to treat cancer have a weakened immune system. Some vaccinations are comprised of a weakened live virus and are not recommended for those who are immunocompromised. What strategies can help protect the immunocompromised individuals in a community? Choose all that apply. (A) Achieve high vaccination rates to provide herd immunity. (B) Vaccinate them even if they are immunocompromised. (C) Create an alternative non-live vaccine. (C)...

What is the most common complication of pertussis? A. Seizures B. Pneumonia C. Hypoxemia D. Colic B. Pneumonia Herd immunity refers to which of the following situations? A. Vaccination of enough individuals in a community to protect those who cannot be vaccinated B. Immunity that occurs following infection with wild-type virus C. Vaccinating groups of individuals who are at high risk for disease from environmental microbes D. Immunity from diseases that circulate in other species A. V...

The incubation period for an infectious disease is occurs during which stage of disease? Stage of clinical disease. Stage of recovery. Stage of preclinical disease. Stage of susceptibility. - ANSWER-Stage of preclinical disease Primary prevention efforts are focused on which stage of disease?A. Stage of clinical disease B. Stage of recovery C. Stage of preclinical disease D. Stage of susceptibility E. A and C - ANSWER-Stage of susceptibility People who are infected with a...

IMM250 ACTUAL EXAM QUESTIONS AND ANSWERS ALL CORRECT How can antibodies defend a host against a virus? - Answer- -Antibodies can neutralize the virus by binding to it before it enters a host cell - Antibodies can bind to virus protein antigens on the infected cell surface leading to complement-mediated or NK-mediated lysis of the cell. In neonatal immunity: - Answer- Protective antibodies are obtained from the mother during pregnancy and breast feeding. A monoclonal antibody preparation...

90. What is leftover after the pathogens have been eradicated? 91. What forms the cellular response? 92. What forms the humoral response? 92. What is the primary immune response? 93. Why is the primary response so slow? 94. What do the different memory cells remember? 95. What is the secondary immune response? 96. Why is the secondary immune response quicker? 97. What is in vaccines? 98. What is Herd Immunity? 99. What kinds of anti...

NU 302 Exam 3 With Questions and Answers Latest Update 2024/2025 (100% Verified Answers) Thomas Sydenham - ANSWER Observed London fevers () James Lind - ANSWER Relationship of diet and disease and prevention of scurvy (vitamin C) Edward Jenner - ANSWER Smallpox vaccination Ignaz Semmelweis - ANSWER Prevent maternal deaths (hand hygiene and sanitation) John Snow - ANSWER Investigated cholera epidemic, known as father of epidemiology Florence Nightingale - ANSWER Monitored and cared for so...