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- 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)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 strainsChildren 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)
- Which of the following is acommunicable disease?A. DiabetesB. AsthmaC. MeaslesD. ScurvyWhich of the following sentences is NOT correct: a)CMV causes heterophil-negative mononucleosis b)Poliovirus can cause paralytic disease c)Astrovirus causes gastroenteritis only in adults d)EBV can cause nasopharyngeal carcinoma e)Mumps virus can cause meningitiswhat is the name of the etiological agent? Treponema pallidum Francisella tularensis Plasmodium spp Cytomegalovirus Antibiotics are contraindicated for this disease as they can cause the incidence of complications to rise. True/false there is a vaccine to prevent this disease. true/false what arthropod can spread this disease? fleas ticks flies mosquitos
- Regarding EV71 infection, the following statement about this pathogen is correct, EXCEPT The best preventive approach is to stop contact with infected individuals There is a natural animal reservoir for the virus except humans There is a specific vaccination available The infection often occurs in children between 6 months to 5 years-old Death may happen in those with severely-infected and central nervous involvementWhich of the following most directly causes the symptoms experienced by a person who is infected with a coronavirus, such as SARS-CoV-2? A. The virus eating the cells of the respiratory tract B. Viral spikes poking holes in lung cells C. Immune response of the hostOne 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 E
- Rabies 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 an air-borne disease? A. Measles B. Typhoid C. Pink eye D. None of the aboveIdentify one correct statement re. human papillomavirus in the followings: HPV-6 causes genital wards, the latter will become cancerous All HPV types can transform infected cells There are more than 1 correct answers in the other choices Coinfection with 2 types of low risk HPVs can transform the infected cells High risk HPV types can transform infected cells and are oncogenic