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How long did the Ebola outbreak continue before it was recognized by health officials?
A. Months
B. Days
C. Years
D. Weeks
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- Which statement is true of viral replication? a. In the process of apoptosis, the cell survives. b. During attachment, the virus attaches at specific sites on the cell surface. c. The viral capsid helps the host cell produce mow copies of the viral genome. d. mRNA works outside of the host cell to produce enzymes and proteins.How long did the Ebola outbreak continue before it was recognized by health officials? A. Days B. Weeks C. Years D. MonthsHow is the Zika virus spread? A. Through person-to-person contact B. Through mosquito bites C. Through the release of the virus into the air by plants D. Through dog bites
- How is the Zika virus spread? A. Through person-to-person contact B. Through mosquito bites C. Through dog bites D. Through the release of the virus into the air by plantsWhy was it difficult to break the chain of infection during the Zika outbreak? A. It required killing all of the mosquitos in the region. B. It required killing all the birds in the region. C. Scientists couldn't figure out how the virus even started. D. Because scientists hadn't yet realized it was impossible to break the chain of infection.Write a reflection on what you have learned on how to solve epidemiologic cases from scratch.
- Why was the location of the Ebola outbreak so catastrophic? A. Because it began on the border of 3 African countries that are extremely isolated. B. Because it began on the border of 3 African countries that are densely populated and well connected to each other. C. Because it began on the border of 3 continents that are densely populated and well connected to each other. D. Because it began on the border of 3 continents that have very little infrastructure.Which is true of DNA viruses? a. They use the host cell’s machinery to produce new copies of their genome. b. They all have envelopes. c. They are the only kind of viruses that can cause cancer. d. They are not important plant pathogens.Which is the part of the virus that attaches to the host cell? a. Exterior proteins b. Capsid proteins c. Lipid envelope d. mRNA
- Why was it difficult to break the chain of infection during the Zika outbreak? A. Scientists couldn't figure out how the virus even started. B. Because scientists hadn't yet realized it was impossible to break the chain of infection. C. It required killing all the birds in the region. D. It required killing all of the mosquitos in the region.In the case of the Ebola outbreak in the Democratic Republic of the Congo (then called Zaire) in 1976, how did the virus first transmit to humans? A. A teacher ate a wild bat B. A teacher ate a wild antelope C. Scientists are still unsure D. A mosquito bit a teacherA doctor is researching new ways to treat biofilms on artificial joints. Which approach would best help prevent bacterial colonization of the medical implants? a. Increase antibiotic dosing b. Create implants with rougher surfaces c. Vaccinate patients against all pathogenic bacteria d. Inhibit quorum sensing