The Ro of Ebola has been estimated to be somewhere between 1.5 and 2. See graphic below. The number of people that one sick person will infect (on average) is called R.. Here are the maximum R. values for a few viruses. more contagious Hepatitis C (2) Ebola (2) HIV (4) SARS (4) Mumps (10) Measles (18) What percentage of the population would have to be vaccinated to stop the spread of Ebola if it were to be introduced to a new continent? a. 33-50% b. >99% c. 75-99% d. 66-75% e. <33%
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- Susceptibility/Predisposition to Infectious Disease Why is it that some people always seem to get the flu and others don't? Why are some individuals more susceptible to SARS CoV-2? 1) links between human genetic variation and susceptibility to a specific infectious disease (e.g., Neanderthal DNA and Covid), 2) link between aging and a specific infectious disease 3) links between stress, nutrition, or exercise and a specific infectious disease. Please be sure to mention: The factor you explored The disease(s) implicated How the factor affects susceptibility to disease (i.e., mechanism)Ebola virus kills 90% of the people infected. In an infected individual, how many copies of Ebola Virus are present in once cubic millimeter (1 mL) of blood? Which major organ is affected and what are the consequences? Why does the blood pressure decrease in a person infected with Ebola virus? What leads to the death of the person? How many people died in the West African Ebola outbreak? How many healthcare workers died? What is being done to prevent Ebola virus?docs.google.com/forms/d/e/1FAlpQLSen_DnlxjlAa6EoAyAOhS Gitcmj9fQ_M4bwAg1Wizsq5Yp4A/formResponse O YouTube Maps nanswers TaT4 are rUC Which of the following are true regarding testosterone? * (1) Testosterone acts on specific target cells to stimulate male sexual characteristics. (2) Testosterone is directly stimulated by the release of GnRH. (3) Testosterone produces a negative feedback mechanism to regulate GnRH. (4) If spermatogenesis is slow, testosterone production is stimulated. O A- If answers (1), (2) and (3) are TRUE B- If answers (1) and (3) are TRUE O C- If answers (2) and (4) are TRUE O D- If only answer (4) is TRUE O E- If answers (1), (2), (3) and (4) are TRUE Which is true of the following statements regarding COVID-19? (1) SARS-CoV-2 is the virus that causes COVID-19 (2) The new coronavirus can infect the upper or lower part respiratorv svstem
- Yearly vaccination is the primary means of preventing and controlling flu outbreaks. Here 'yearly' is important because: New vaccines with better efficacy are produced each year Circulating strains of influenza viruses change from year to year New vaccines with up-to-date strain components are produced each year Who is at higher risk of developing severe pneumonia when infected with SARS-CoV-2? An undergraduate A student at high-school A 6-month-old baby A 70 years old man with diabetes and high blood pressureThe figure shows the progress of an untreated HIV infection. Which curve represents the 800 600 concentration of helper T cells in the blood? 400 200 AS Years after untreated infection 9. 10 O None of the curves show helper T cell concentration. O curve C O curve A curve BIV. SARS COV-2 and COVID-19: Where We Are Then and Now Directions: Read an excerpt from a Department of Health (DOH) article on COVID- 19 Disease. Then answer the questions that follow. BACKGROUND The novel coronavirus, SARS COV-2, first isolated in Wuhan City, Hubei province, in China last December 2019, has caused a global pandemic with staggering speed. As of June 30, 2020, there were more than > 10,000,000 COVID-19 cases worldwide, with more than 500,000 reported deaths... The situation in the Philippines has also rapidly evolved, with a single case identified last January 30, 2020, to over 200 cases by March 16, 2020... The clinical presentation of COVID-19 disease ranges from a mild common cold-like illness to a severe viral pneumonia leading to acute respiratory distress syndrome that is potentially fatal. Large, retrospective case series from China have shown that the elderly, those with comorbidities, and those with pneumonia are most at risk for severe disease (3- 6). The…
- Pertussis, also known as whooping cough, is a highly contagious respiratory disease. Below is a graph showing the prevalence of cases of pertussis in England and Wales. Answer ALL of the following questions based on the graph. 1) What do the orange and the green lines signify? 2) Make TWO inferences on the relationship between the orange and the green lines. 3) Estimate within a 5-year span, the approximate time that a vaccine for pertussis became available.What is Influenza? What is the best way to prevent flu? Is there any alternative to vaccination in preventing influenza?COVID-19 is caused by infection with a novel corona virus, SARS-CoV-2. Testing someone for active infection involves examining samples taken from the nasal mucosa for fragments of the virus. Another type of testing involves examining blood for the presence of antibodies that can bind to SARS-CoV-2. Use what you've learned about the immune system. What are the suggested reasons why someone would possess antibodies to SARS-CoV-2.
- The World Health Organization (WHO, 2017) haslisted six steps individualscan take to prevent and control the spread of antibiotic resistance. a.One of the recommendations is “Never demand antibiotics if your health worker says you don’t need them.”Explain why when you have a flu, your health care worker would say that you do not need antibiotics. What are the other five recommendations?The Mystery of Legionnaire's Disease -The bicentennial convention of the American Legion was held in Philadelphia in 1976 at the elegant but aging Bellevue Stratford Hotel. Toward the end of the conference, a number of the attendees were suffering from flulike symptoms, and 4 days after leaving Philadelphia, an Air Force veteran died from pneumonia. During the next week, 30 additional Legionnaires who had been at the conference died from what became known as Legionnaire's Disease. Theories ranged from viral pneumonia to terrorism (before this became a popular alternative) to a communist plot (after all, these were mostly veterans who died). Conduct a research and answer the following: a) find the cause of the Legionnaire's Disease; b) explain how this disease spread in the hotel and come into contact with the Legionnaires (attendees) c) explain how this event can be prevented in the future.A few years ago, Ebola was all over the news and it looks like it may return. A treatment method developed during the last outbreak involved patients who have recovered and then donated plasma to patients fighting an active infection. It is a remarkable treatment, with potential ethical dilemmas. Now, many people are attempting to turn to convalescent plasma treatments in lieu of vaccinations. There are articles on both Ebola and COVID-10 convalescent plasma use. Read the articles below, feel free to do more research on your own on the topic. Using the information in the lesson, the articles, and your own research, answer the following questions: 1) What are the potential ethical issues for donors, recipients, and medical providers? 2) What rules and stipulations should be applied to it's use, given that there is a limited supply for use in treatment? 3) Would you use this treatment for yourself or a loved one? Assigned Reading: Katz, L.M. (2021). (A little) clarity on…