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SciOly ‘25-’
Team Entry Diagnostic
Disease Detectives
Number of Questions: 37
Time Allotted: 30 minutes
DO NOT WRITE YOUR NAME
BxSciOly Member ID: bxscioly_ ☐☐☐☐☐
Epidemiology: ______/
Case Study: ______/
Score: ______/
Directions/Rules:
● You may bring one 8.5” x 11” double-sided cheat sheet
● Put all mobile devices in your bag. If you are caught using them, you will be
denied admission to the team.
● Record all answers in the space allotted below the question
● Try to answer every question! No points will be taken off on questions
answered incorrectly.
● Good luck! :)
Epidemiology 🦠
History- For questions 1-6, write down the person who completed the achievement.
- Who developed a vaccine for anthrax in the 1880s? [1]
- Who developed the smallpox vaccine by using cowpox as a way to gain immunity? [1]
- Who created the oral polio vaccine in 1961? [1]
- In 1928, who discovered penicillin, an antibiotic that would revolutionize the treatment of bacterial infection? [1]
- Who introduced the concept of aseptic surgery technique in the late 1860s? [1]
- Who conducted one of the first studies in analytical epidemiology by investigating a cholera outbreak in London? [1]
- Before the CDC (Centers for Disease Control and Prevention)’s purpose was to target the spread of all communicable diseases, it was initially created in 1946 to control the spread of a specific disease in the US. Which disease was this? [1] a. Malaria b. Tuberculosis c. Scarlet fever d. Measles
- A convalescent carrier/vector can transmit disease _______ [1] a. Only during the incubation period b. Before showing symptoms c. After recovery from illness d. Only when severely ill
- What would be a necessary cause in a causal pie representing factors contributing to contracting COVID-19? [1] a. Exposed to coronavirus b. Not vaccinated c. Being immunocompromised d. Being an older adult
- Which of the following is an example of fomite? [1] a. Infected human b. Mosquito c. Doorknobs d. Feces
- Which is not one of the five steps of surveillance? [1] a. Data collection b. Distributing info about disease to public c. Performing laboratory tests d. Analyzing and interpreting data
- What does the symbol R 0 represent? [1] a. Proportion of population that is immune to disease b. Average duration of infection c. Morbidity rate of disease d. Number of secondary cases produced by one case
- What does the S stand for in an SIR model? [1] a. Susceptible b. Symptomatic individuals c. Severe cases d. Secondary infections
- A choropleth map is used to… [1] a. Show disease cases using individual points on a map b. Display temporal changes in disease incidence over time c. Show movement of disease spread between regions d. Represent data values using different shades across geographic areas
- Which is an example of a disease that has been eradicated? [1] a. Smallpox b. Polio c. Tuberculosis d. No disease has been fully eradicated in humans
- Which form of surveillance is being utilized when health agencies contact health providers to seek info about a disease? [1] a. Passive b. Active c. Syndromic d. Sentinel
- Which type of organism normally violates Koch’s Postulates because it can’t be grown in pure culture? a. Bacteria b. Fungi c. Virus d. Parasite
- Recall the outbreak of cholera in London that was investigated by John Snow in 1854. What source would be graphed in an epidemic curve representing this situation? [1] a. Point b. Intermittent c. Continuous common d. Propagated
- Sketch an epidemic curve representing the source in question 24. Just draw the general shape and label the axes, you don’t need to add data points. [3]
Case Study 🔍
SHOW WORK FOR ALL CALCULATIONS!
At the end of an amazing SciOly season, your team goes out to dinner to celebrate! You go to Oishii Sushi, a new sushi restaurant that has opened in NYC. Unfortunately, after the dinner, from June 2-7 your team starts suffering symptoms of diarrhea, vomiting, abdominal pain, and headaches. As an experienced and accomplished Disease Detectives member, you decide to investigate this situation.
- Write a case definition for this outbreak. [5]
You ask everybody on the team what dish they ordered and create the table below based on the information.
Exposed + Ill Exposed + Not Ill Tuna Roll 2 8 Salmon Avocado Roll 4 9 Rainbow Roll 3 11 Mackerel Roll 6 9
- What kind of epidemiological study are you conducting? [1]
- What is one advantage and disadvantage of this type of study? [2]
- Assume that every person that had the symptoms was sick with the same type of food poisoning. What is the prevalence of food poisoning in your team? [2]
- Based on the data from this table, calculate the appropriate measure of risk for each dish. Assume each person only ordered and ate one dish. Round to the nearest hundredths place. [8]
- Which dish is the most likely cause of the food poisoning? Justify your answer by using your calculated results. [2]
- Name one of Hill’s Criteria of Causation that your investigation meets. [1]
- Some members might have inaccurately reported what dish they ordered since they forgot. What type of bias is this? [1]
- If you were part of the kitchen staff in the sushi restaurant, name two measures you would take to prevent this situation from happening again. [2]
