Which of the following statements regarding the ongoing COVID-19 pandemic is incorrect?
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Which of the following statements regarding the ongoing COVID-19 pandemic is incorrect? Please feel free to use the internet.
| a. |
On an average, approximately one (1) out of every fifty (50) individuals with a confirmed COVID-19 diagnosis has died globally since the start of the pandemic |
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| b. |
Brazil accounts for the second highest number of COVID-19 related deaths after the United States |
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| c. |
The World Health Organization (WHO) characterized the COVID-19 as a public health emergency of international concern on March 11, 2020 |
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| d. |
In terms of per capita COVID-19 vaccination (number of fully vaccinated individuals per 100 population), Israel occupies the first position |
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by Bartleby Expert- please explain this graph to meName three taxa of bacteria that are downregulated in CF patients and list their phylum.Which of the following is not true? a. Cockroaches can transport a variety of parasites, usually on their external surface. This is an example of mechanical transmission by a vector b. A contamination will inevitably lead to an infection c. Case fatality rate is one of the indicators of virulence of an infectious agent d. None of the pandemics prior to COVID-19 were caused by a coronavirus
- The epidemiological or disease triangle is a model of disease causation that proposes three factors contribute to an outbreak – an agent that causes the disease, a susceptible host, and an environment that brings the host and agent together. Some general changes within these three factors that may cause an infectious disease to emerge include: A. changes in populations or behavior of reservoir hosts or intermediate hosts B. microbial genetic mutation and viral genetic recombination or assortment C. environmental factors such as an increase in precipitation D. all of the above E. none of the aboveIdentify the statement that does not provide accurate evidence as to why HIV is so lethal. a. During the course of infection, HIV increases immune activation by altering intestinal physiology to let more microbes into the blood supply. b. Immune evasion increases in many infections due to HIV virions evolving new and unrecognizable epitopes (antigens). c. In many individuals the virus population evolves to use different receptors to gain access to a greater diversity of host immune cells. d. HIV causes enhanced replication and proliferation of T cells, which allows the immune system to work better at defending against pathogens.Approximately 50% of the world’s population is colonised by Helicobacter pylori (H. pylori), yet only a fraction of the population develops gastric ulcers. A. Why is there a discrepancy between the frequency of H. pylori colonization and the frequency of gastric ulceration? Is H. pylori colonization responsible for gastric ulcers? B. Should a vaccine against H. pylori be developed and administered for everyone? Justify your reasoning.
- The population of Denton County is 887,207. As of October 12th, there are 331 new cases of COVID-19. There are 15,363 active cases. There are 104,080 total cases. Calculate the prevalence rate of COVID-19 in Denton County per 1,000 people.Please consider the figure attached i. The ordinate (i.e., 'y-axis') represents values for the C or G nucleotide base proportion in sequences (or, in this case, genomes).ii. Influenza viruses that infected birds or moved from birds to humans without spreading are characterised by higher A + U content relative to influenza viruses that infected humans for long time periods.iii. Influenza viruses adapted to human hosts are characterised by lower G + C content relative to influenza viruses that infected birds or moved from birds to humans without spreading. iv. Human and swine influenza A H1N1 strains evolved from a birdlike G + C state to a humanlike G + C state since 1918. v. Data such as those depicted in the figure have been interpreted as evidence that the 1918 influenza virus strain originated from a bird influenza virus population. Question 1 options: A) Statement ii conveys accurate information. B) Statements ii,…https://www.hhs.gov/ohrp/regulations-and-policy/guidance/ohrp-guidance-on-covid-19/index.html OHRP Guidance on Coronavirus | HHS.gov | HHS.gov with background of the information on IRB approval a. When we think about the recent Covid pandemic, why was it important that information on Covid research be rigorously scrutinized and verified, no matter the outcome of the studies?
- Select the most accurate answer: Adenoviruses:A. are non-enveloped dsRNAB. are most infection are symptomaticC. are infection are common in adultsD. have only one antigen (serotype)E. are icosahedral, 252 caspsomers, fibers projection, like a satellite (space ship)F. replicate in the cytoplasmG. subgroup A: serotypes 12, 18, and 31: are highly oncogenicH. Both E and G1) How does cholera kill people? 2) What was Dr. Snow's initial hypothesis on the cause of cholera? 3) What methods did Dr. Snow use to test his hypothesis? 4) What was "The Report That Changed The World" ? 5) What is a voronoi diagram? 6) What is the definition of an "A B Test" ? 7) Name a place where cholera is still a problem today. 8)What public health policies would you apply to help that place?The increased incidence of covid-19 cases is due to the delta variant which has been found primarily to be airborne. Viruses and other microorganisms are considered to be constituents of particulate air pollutants. The DENR-EMB requires engineering tools and techniques that would significantly reduce the emission of pollutants into the atmosphere. Which of these tools and techniques would be the most appropriate for use in reducing particulate pollutants carrying covid-19 viruses? Why?