A test is used to screen people for hepatitis B. The sensitivity of the test is 95% and the specificity of the test is 90%. Assume that the total number of persons being tested for hepatitis B is 50,000. Assume that the true prevalence of hepatitis B in the population is 100 per 50,000.Calculate the number of true positives and the number of false positives
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A test is used to screen people for hepatitis B. The sensitivity of the test is 95% and the specificity of the test is 90%. Assume that the total number of persons being tested for hepatitis B is 50,000. Assume that the true prevalence of hepatitis B in the population is 100 per 50,000.Calculate the number of true positives and the number of false positives .
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- In the United States, the agencies most responsible for preventing foodborne illness are the USDA and the CDC? A. True B. Falserefer to the provideed image 89. What was the drink that the bar goers were LEAST exposed to?A. Cosmopolitan B. Manhattan C. Margarita D. Spritz90. What was the drink that the cases were LEAST exposed to?A. Moscow muleB. Negroni C. Root beerD. Whiskey sour 91. Which among the following shows the correct sequence of drinks arranged according to increasing numberof “diseased” AND “exposed” individuals?A. Manhattan – Margarita – Martini – Root beerB. Margarita – Spritz – Mojito – MartiniC. Mojito – Whiskey sour – Martini – SpritzD. Moscow mule – Martini – Negroni – SpritzAccording to the World Health Organization (WHO), an estimated 240 million people are chronically infected with hepatitis B. This number describes hepatitis B's Group of answer choices virulence. incidence. mortality. prevalence.
- For items 38-39, refer to the given data below:A screening test for Hepatitis B infection has a reported sensitivity of 95% and specificity of 80%. The test is administered to 2000 residents of Sitio Pedro in which the prevalence of Hepatitis infection is 3%.38. How many residents who do not have actual Hepatitis infection would be expected to test positive?A. 388 B. 445 C. 1552 D. 1555 39. The same test were administered to 2000 residents of Sitio Bato in which the prevalence of Hepatitis B infection is 60%. If the residents’ tests negative, what is the probability that they truly do not have Hepatitisinfection? A. 9% B. 12% C. 40% D. 91%Write a summary or short note or conclusion about: People living in the urban areas of Bangladesh are at high risk of heavy metal poisoning. Please explain at your own wordsrefer to the provided image 86. What was the modal drink consumed by bar goers during the time frame under investigation?A. Margarita B. Martini C. Negroni D. Root beer87. What was the modal drink consumed by the cases during the time frame under investigation?A. Cosmopolitan B. Martini C. Negroni D. Root beer88. What was the approximate median incubation period of the illness based on the provided scenario?A. 15 minutes B. 30 minutes C. 35 minutes D. 5 minutes
- The term hepatitis is an example of anThe table below shows the arrival and departure times of a particular meal for certain regions of the digestive system of six patients (A to F). 2.1 Which patient was the last to have a meal? 2.2 How long did the meal remain in the...(a) small intestine of patient E? (b) stomach of patient D? 2.3 Why would food spend a long time in the small intestine? 2.4 If a person should only eat bread, maize, and potatoes, which symptom are they likely to develop? Patients Arrival time of meal in stomach Departure time of meal from stomach Departure time of meal from small intestine A 6:00 8:19 11:40 B 6:10 8:05 10:22 C 6:40 8:52 11:32 D 6:30 8:27 11:22 E 6:50 8:57 11:50 F 6:20 8:20 11:20What percent of people are killed if they are infected by the Ebola virus? A. 80% B. 45% C. 100% D. 90%
- Suppose a patient was admitted at the hospital with severe acute diarrhea. What will be the treatment approach at hospital? Please answer at your own words.An investigation of an outbreak of diarrhea revealed that the proportion of cases eating in restaurant A was 85%, in Restaurant B was 15%, and in Restaurant C was 55%. The proportion consuming public water was 95%. A) Did the investigator collect adequate information to determine the source of the outbreak? Provide a relational for your answer. B) State at least one additional piece of information (data point) that you would like to have in order to determine whether the diarrhea is associated with the restaurants food or the public water.This graph shows incidence of severe diarrhea (spelled diarrhoea here) in a single country from January 2006 to July 2018, as measured by hospital admission. Which line shows only the diarrhea cases caused by rotavirus? A. The orange line B. The blue line C. There is no way to know