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- Which of the following is NOT true about Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) and the disease it causes? Which option is the answer: 1. During Coronavirus Disease (COVID-19), a person is the most highly infectious for others during the period of peak viral load and symptoms 2. As it is transmitted through the global human population, the virus is highly genetically stable and does not change 3. Some people who become infected with SARS-CoV-2 will not develop signs and/or symptoms of disease 4. The severity of disease varies greatly, depending on age and/or underlying predisposing conditions 5. Emerging SARS-CoV-2 variants may sometimes be more transmissible than previous strainsOne of the following is CORRECT about Norovirus It is single-stranded DNA It can always cause congenial disease It is susceptible to adverse environmental conditions, pH, temperature, sanitizers It can be transmitted via fomites, i.e. inanimate objects such as door handles Most infections are acquired by feco–oral route, and rarely acquired from aerosolized vomit All of the above Both D and E A, B and C One of the following is NOT of the characteristics of herpesviridae? Can be dormant in the host cell Some genera can cause cancer In some cases, it can reactivate and cause disease for life In some cases, it can cause no disease Viral nucleic acid is found in the host cell’s cytoplasm Air-borne and water-borne Both A and C Both E and F Both D and ERabies is a disease that can be transmitted between humans and animals. describe at least two human activities that potentially contribute to increased transmission of the Rabies. what the link is between human activity and virus transmission. Are there any specific actions we can take to reduce the risk of disease transmission, either as individuals or through governmental actions/regulations?
- Which of the following is acommunicable disease?A. DiabetesB. AsthmaC. MeaslesD. ScurvyOne of the following choices is NOT correctA. the varicella-zoster virus (VZV) causes chickenpox and is highly contagiousB. VZV is a type of poxvirus virus and is also responsible for herpes zoster (shingles)C. symptoms of VZV infection include fever, headache, and stomach ache, an itchy blister-like rash follows within 10-21 daysD. Chickenpox is mild in childhood, but is serious in children with compromised immune systemsE. the VZV can remain dormant in the body for decades, and if it becomes reactivated it results in herpes zoster, or shingles (an extremely painful rash)True or False1. Cholera is an example of a vector borne disease2. Tourniquet is an example of a fomite3. Transmission of Neisseria gonorrhoeae to the baby is considered prenatal transmission4. HIV can be transmitted via prenatal5. Infectious agent is also the pathogenic organism
- The reason that influenza infection is more dangerous than the common cold is because ___. the antigen of the cold microbe mutates but influenza antigen remains constant the flu can infect the lungs, the cold rarely infects any deeper than the trachea influenza has a food borne route of infection, while the cold has a direct contact route flu cannot be controlled by antibiotics but the cold can beWhich of the following statements is not correct forviruses?(a) Viruses are obligate parasites.(b) Viruses can multiply only when they are inside theliving cells.(c) Viruses cannot pass through bacterial filters.(d) Viruses are made up of protein and DNA or RNA(never both DNA and RNA). Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.Children get a chickenpox vaccine at 1 year old and a booster shot between 4 to 6 years of age, this will be 90% effective in preventing the disease, some may still develop the illnessA. trueB. false One of the following choices is NOT correctA. the varicella-zoster virus (VZV) causes chickenpox and is highly contagiousB. VZV is a type of poxvirus virus and is also responsible for herpes zoster (shingles)C. symptoms of VZV infection include fever, headache, and stomach ache, an itchy blister-like rash follows within 10-21 daysD. Chickenpox is mild in childhood, but is serious in children with compromised immune systemsE. the VZV can remain dormant in the body for decades, and if it becomes reactivated it results in herpes zoster, or shingles (an extremely painful rash)
- Describe the coronavirus infection and disease spread using as many epidemiological terms as possible. Explain why you are using those terms (in other words, why do the terms you are using describe this disease?) Why have all levels of government pushed the concept of “social distancing”? Is this effective?What is correct for cold virus (rhinovirus)? Has an incubation period of usually 1 week Circulates only during the winter in Sweden There is no vaccine Has no cover It is primarily a type of rhinovirus that causes diseaseWhich of the following best explains why vaccination of humans against rabies can be delayed until after exposure to a potential source of infection? A) Antibody responses are more rapid than those against other viruses B) T lymphocyte responses are more rapid than those against other viruses C) The virus does not infect any cells for several weeks or months D) The virus does not reach i target organ for several weeks or months