Concept explainers
To answer:
The features shared by smallpox and polioviruses that helped medical science to get rid of these diseases.
Introduction:
Poliovirus is a small single-stranded RNA virus that spread from person to person via the oral route. Poliovirus infection is more evident in summer because warm weather supports the spread of this virus. Smallpox is a disease caused by the variola virus. It is a large virus with double-stranded DNA. The virus is transmitted by inhaling the virus from oral or droplets from an infected person. One-third of the people with smallpox died from the disease.
Want to see the full answer?
Check out a sample textbook solutionChapter 20 Solutions
Microbiology with Diseases by Body System & Modified MasteringMicrobiology with Pearson eText -- ValuePack Access Card -- for Microbiology with Diseases by Body System Package
- You have a discussion among friends about viruses that can cause latent and chronic infections in humans. The first friend says that an example for latent infections in humans are oral and genital herpes caused by herpes simplex virus and that examples of viruses causing chronic infections are Hepatitis C and HIV. The second friend says oral and genital herpes as well as chickenpox/ shingles are chronic infections and that HIV is an example for a virus causing a latent infection. O The first person is correct O The second person is correctarrow_forwardConsidering that CMV infects 50% of the adult population in the United States and 100% of the population in many other countries, why is there so little Cytomegalovirus disease in the world?arrow_forward53) The sheeppox and goat pox virus are both found in Africa and Asia only. Select one: F /T 54) the capripoxvirus genus contains the lumpy skin disease virus and the pseudolumpy skin disease virus. Select one: True / False 55) the poxiviridae family contains two subfamilies Select one: True / Falsearrow_forward
- How common is ABV in the USA? In the United States, over half of adults have been infected with ABV by age 40. Once ABV is in a person's body, it stays there for life and can reactivate. Match terms with descriptions based on the text above. You can use an answer more than once or not at all. "Over half of adults have been infected with ABV by age 40." ABV could belong to this group of viruses: A. Human Papilloma Viruses B. Incidence of ABV C. Herpesviruses D. Prevalence of ABV by age 40arrow_forwardIn 2019, a couple died from plague after eating uncooked rodent spleen (a delicacy where they were traveling). Any exposure to fleas can lead to plague, but it is most commonly transmitted by fleas from rodents/prairie dogs/squirrels. For the decades it has been known about, Ebola (and many of these other hemorrhagic viruses) have been contained to rural villages. After 2000, they began to spread into urban areas, from which they can launch into epidemics and pandemics. The index (first) case of Ebola in urban areas of Congo (May 2018) was the first sign of an urban Ebola epidemic that raged for more than a year, with about 2000 confirmed cases. Which symptom set characterizes these viruses in particular? high fevers sore throat clotting problemsarrow_forwardLyme disease or zika virus https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5729143/ https://www.hopkinsmedicine.org/zika-virus/what-is-zika-virus.html Which virus are you more concerned about? Some questions to think about for your answers: Are there available treatments? Be a health care provider: What would you recommend for your patients to avoid these viruses? Do your recommendations change in the mists of the Covid pandemic?arrow_forward
- What is the major difference between common cold and flu? Why has no vaccine been developed for the common cold?arrow_forwardWhat do the following viral encephalitis diseases have incommon: eastern equine encephalitis, western equine encepha-litis, Venezuelan equine encephalitis, St. Louis encephalitis, WestNile fever?(a) They are all caused by the same virus.(b) They all have the horse as a common intermediatehost.(c) They are all transmitted into the body through the biteof an infected mosquito.(d) Birds are never involved in the life cycle of the virusesthat cause these diseases.(e) Both a and d.arrow_forward49) Orf virus belongs to the parapoxvirus genus and it's a zoonotic virus : True / False 50) the best way to isolate the poxviruses is allantois inoculation. : True / False 51) the best way to isolate the poxviruses is by allantoic inoculation. Select one: True / False 52) Goat poxvirus is more diverse than sheep pox virus: True / Falsearrow_forward
- In Europe, for several centuries, measles has been a childhood infection that rarely kills. When European settlers came to the New World, however, the measles virus they brought with them killed a large portion of native populations. Explain.arrow_forwardJust last week the Energy Department now seems pretty confident that the coronavirus came from a lab leak: https://www.nytimes.com/2023/02/26/us/politics/china-lab-leak-coronavirus-pandemic.html The textbook discusses how the environment is part of the epidemiologic triangle. What is the epidemiologic triangle? (Figure 10-2, p.210). Why does it matter where this coronavirus started? Do you have any theories about how the virus was transmitted to humans?arrow_forwardWhat do influenza virus and Ebola virus have in common?In what ways do their modes of transmission differ?arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education