College of Nursing and Healthcare Professions -PUB-540-O500: Principles of Epidemiology
College of Nursing and Healthcare Professions -PUB-540-O500: Principles of Epidemiology
The average incubation period for gastrointestinal illness is 6 hours 13 minutes. To arrive at this, one subtracts the time when each patient developed signs for the disease from the time of exposure, at 6 p.m. to 11 p.m. on April 18. Thus, subtracting each reported case from the time thepatients had their supper helps determine the hours it took them to show signs. The resulting answer for each case is then multiplied by the number of people who developed symptoms at that same time. For example, on the epi curve, case one was reported at 3 p.m., four hours after thechild had a vanilla ice cream. Each patient’s time before showing signs of the disease is then summed, which comes to 280.75 hours, divided by the total number of cases, which is 45.¿6.23hours.To convert 0.23 hours into minutes, one multiplies it by 60 minutes which comes to 13.8minutes. Therefore, the average incubation period for the disease is 6h 13 minutes. The epi curveshows the source of the illness was vanilla ice cream considering that patient #52 suffered after having a dish. The transmission mode was a vehicle, which was the vanilla ice cream, as it was contaminated with disease-causing microbes. Potential Infectious Agents.Infectious agents includingStaphylococcus aureusandalbuswere found on the vanilla icecream. The two are potential causes of the infection.Staphylococcus aureus and albuscauseStaph disease, whose signs and symptoms are nausea, vomiting, diarrhea, dehydration, and lowpressure (Mayo Clinic, 2020). Some of these signs were reported through clinical descriptionsconcerning increased disease cases.
3 Why the Disease is Considered an Outbreak Disease outbreak describes increased cases of a particular disease, contrary to the expectations. Disease outbreaks are typically caused by infectious agents, transmitted through person-to-person mainly through contact, environment, or other forms. Staph, as reported, was
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