Concept explainers
To determine:
The reason that government cite for maintaining small pox virus.
Introduction:
Small pox is a deadly and contagious diseases, which is caused by Variola Virus. Variola virus is deadly virus, which is extremely contagious; the disease is now completely eradicated.
To determine:
Whether all the laboratories stores of smallpox viruses be destroyed.
Introduction:
Variola major is a classic small poxvirus, which has a wide spectrum of infection. Virus takes 12 days of incubation period, it enters in the body through esophagus and reach to lymph node and after multiplication they move to the other parts of the body, through blood stream
To determine:
Whether elimination of all the laboratories stores of smallpox viruses really be extinction if the virus DNA has been sequenced and DNA can be synthesized.
Introduction:
At molecular level the DNA can be decoded into the protein. Molecular evolution is the study of changes in genes and proteins throughout different mechanism of genomics, which helps to revive the DNA and protein if corresponding sequence is known.
Want to see the full answer?
Check out a sample textbook solutionChapter 24 Solutions
Modified Mastering Microbiology with Pearson eText -- Standalone Access Card -- for Microbiology with Diseases by Taxonomy (5th Edition)
- The World Health Organization has announced the complete eradication of smallpox and is working to the eradication of measles and polio. Why would vaccination be more likely to eradicate a viral disease than a bacterial disease? Why can polio be eradicated but not influenza? Give reference.arrow_forwardA 42 year old man developed a “flu-like” syndrome with fever, sore throat, headache, and myalgia. Viral culture was ordered for laboratory confirmation of influenza. Which of the following would be the best specimen for isolating virus responsible for the infection? A- Blood B- Nasopharyngeal washing C- Stool D- Saliva E- Vesicle fluidarrow_forwardWhat is the major difference between common cold and flu? Why has no vaccine been developed for the common cold?arrow_forward
- Which of the following statements concerning antigenic drift in influenza viruses is correct? A-It results in major antigenic changes B-It affects predominantly the matrix protein C-It is exhibited by only influenza A viruses D-It is due to frame shift mutations in viral genes E-It results in new sub types over timearrow_forwardWhat factors inherent in the variola virus and the disease smallpox made it possible to eradicate them?arrow_forwardAnswer the following and inlcude the references SARS-CoV-2, the virus that causes CoVid-19, belongs to the Coronaviridae family. Viruses under this family have a genome made of single-stranded positive-sense RNA. Is this similar to the viral genome of HIV? If so, do you think that – in theory – they would have similar replication cycles? Do you think that ART combinations/options might help in suppressing the viral replication of SARS-CoV-2? Expound.arrow_forward
- Considering the current situation of the procurement of COVID-19 vaccine, is it safe to be immunized? Why yes or no?arrow_forwardEfforts to produce an HIV vaccine have met with limited success. What aspects of the virus and its replicative strategy make it difficult to produce a vaccine against HIV? What other kind of virus might be similarly different to vaccinate against? What similarities and differences exist between the two types of virus that account for the differences in vaccine production?arrow_forwardWhat do you understand about a pandemic? What is Coronavirus or COVID 19 and its causative agent? Note: Please don't give me an answer that is plagiarized.arrow_forward
- Human Papillomaviruses are characterised by all of the following EXCEPT A genome of double-stranded circular DNA encoding around eight open reading frame These viruses are small naked and icosahedral They replicate in dividing cells and encodes three oncogenic proteins E5, E6 and E7 These viruses transmit primarily by nosocomial infection in hospitals HPV serotypes 14, 16, 18, 31, 45 are known to cause cervical cancer Rotarix is a vaccine indicated for the prevention of Rotavirus gastroenteritis caused by G1 and non-G1 types (G3, G4, and G9). Which of the following is NOT correct regards this vaccine? following immunisation, children may become irritable and experience diarrhoea ill infants or who born with SCID should not be immunized is live-attenuated vaccine derived from the G1P[8] rotavirus strain is prepared for IV administration is given in two doses None of the above Internationally, which clinical sample, at minimum, is used to diagnose COVID-19? Lung biopsy Blood Faeces…arrow_forwardWhat are the most encouraging words and messages to tell a newly diagnosed COVID-positive patient? And how to make your colleagues and other health workers feel better when inflicted with the virus?arrow_forwardYou have been hired by a major pharmaceutical company to develop a new vaccine toprevent COVID-19 infection and spread.a. What is a virus? Describe the viral life cycle. (3 marks)b. Describe the difference between an antiviral drug and a vaccine. (1 mark)c. What are three qualities you would prioritize when developing this new vaccine forCOVID-19 that you would want in the end-product? (6 marks) Note: Qualities should be overarching characteristics of the developed drug, not specifics regarding various molecular mechanisms of actionarrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning