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Infectious Diseases Final
Terms in this set (69)
Adults infected with these viruses often develop arthritis symptoms...
Parovovirus B19 and Rubella
Croup is often associated with ____ infection.
Which of the following viruses would be expected to remain viable (capable of infection) the longest on an environmental surface?
influenza virus, HBV, HIV, HSV or Rhinovirus
A young child is hospitalized with bronchiolitis and is treated with Ribavirin. The child's infection is likely due to:
Respiratory Syncytial virus
The majority of primary infections with HVS:
occur with out symptoms
A 7 year old boy attending summer camp presents w/ sore throat, headache, cough, red eyes and tiredness. He also has an elevated temperature. Other campers also present with the same infection. This presentation is typical of:
Name some characteristics of West Nile Virus infection to man.
- the majority of infections are asymptomatic.
- healthy young adults are more likely to develop West Nile fever than severe disease.
- The elderly are at greatest risk of severe disease.
- there has been a dramatic resurgence in the number of cases this year.
The highest concentration of Hepatitis A virus is in
Which childhood infection is characterized by a "slapped cheek" rash?
The most likley cause of second cases of Roseola Infantum is:
You see a patient for a second SC/RP one week after the 1st appt when you scaled the Max arch. Today you plan to scale the Man. You note a serious of small ulcerations w/ some confluence on the hard palate on the lingual to the premolar and 1st molar. When asked, the pt. indicated that they've had some mild to moderate discomfort of their palate in that area. The patient has a history of recurrent herpes labialis. This patient most likely has:
Recurrent intraoral herpes simplex
Varicella-zoster virus establishes latent infection in:
The recurrence rate of genital herpetic infections is much higher than that of oral herpetic infections.
Valacyclobir or famciclovir is preferred to acyclovir for treatment of herpes zoster. This is because they:
- require less frequent dosing than acyclovir
- shorten the time to resolution of posttherpetic pain
Name some characteristics of Human herpesvirus 6:
- associated with febrile seizures in infants
- almost constant shedding in saliva
- most infections asymptomatic
Lesions of oral hairy leukoplakia are productively infected with:
Influenza pandemics frequently result from reassortment of genomic segments following infection of a host cell w/ two different influenza viruse, often on of which is an animal virus. This process is referred to as antigenic shift.
Both statements are true
Human herpesvirus 8 has been detected in oropharyngeal secretions more often than in genital secretions in studies of HHV-8 seropositive men. Therefore, the virus is most likely transmitted via saliva.
Both statements are true
Multiple episodes of herpangina are possible because:
multpile viral stereotypes can produce the same infeciton
Postexposure immunization to prevent infection with rabies virus requires administration of:
simultaneous doses of HRIG and a single dose of human rabies vaccine administered IM
Name some characteristics of Varivax, the Varcella-zoster vaccine:
-establishes a latent infection
- can reactive to cause zoster
- may cause a mild case of chickenpox
Frank paralysis due to poliovirus infection occurs in ____ of those infected.
Which virus can produce a painful, inflammatory infection of the testes in postpubertal males?
With what viral infection is the appearance of a rash considered to indicate the end of contagion (patient is no longer infectious)?
Erythema infectiosum (Fifths Disease)
Keratoconjunctivitis caused by____ is likely to lead to permanent loss of vision?
An individual recovering from EBV mononucleosis might be expected to shed virus orally:
-for several months following recovery
- sporadically for their lifetime
Live (attenuated) vaccines are not recommended for pregnant women. Therefore, pregnant women should not be immunized against influenza.
The first statement is true, but the second statement is false.
Postherpetic neuralgia is commonly associated with:
The first doese of Measles, Mumps, Rubella (MMR) vaccine is recommended to be routinely given at:
What is the major reason that influenza vaccine is recommended annually?
The major source of rabies transmission to humans in the U.S. is via contact with:
The majority of symptomatic cases of West Nile infection in man present as:
Treating superficial fungal infections with corticosteroids is likely to result in:
an exacerbation of the infection
What percentage of primary oral infections with HSV are asymptomatic?
The most common virus causing birth defects in developed countries today is:
The protein coat surrounding the nucleic acid of a virus is referred to as the:
Coxsackievirus A16 is a common cause of:
The syndrome most often associated with arboviral disease in the U.S is:
Denture patients with inflammed tissues under the denture and/or angular chelitis probably have an infection with:
Herpesviruses derive their envelope by budding from the:
Which of the following is almost always fatal:
Although the cause is unknown, it is postulated that postpoliomyelitis syndrome is due to:
psysiologic attrition of motor nerves
"slapped cheek" rash is characteristic of:
Cytomegalovirus is often associated with which of the following AIDS patients?
What is the current recommendation regarding influenza immunization?
Influenza immunization is recommended for children 6-23 months of age, all adults over the age of 65, all persons with certain risk factors, and healthcare providers.
The HPV vaccine is most effective when given to:
What happens during smallpox infection?
-all lesions form pustules and crust over a the same time
- high fever occurs 2-3 days before rash
-Mortality rate of 5-30%
The benefit of treatment recurrent oral herpetic infections with a topical antiviral is:
-generally about a day's reduction in time to loss of crust and viral shedding
- most effective when treatment is initiated at the first sign of a recurrence
The infectious agent responsible for the development of Creutzfeld-Jakob disease is a/an:
abnormal form of a cellular protein
What are some characteristics of herpetic keratoconjunctivitis:
- is highly contagious
- is self limiting
-may lead to loss of vision
The majority of infections with polioviruses:
Interferon inhibits viral replication by inhibition of:
How is HSV transmitted?
through contact with lesions or secretions
What should be the primary concern when a patient presents for dental treatment w/ vesicular herpes labialis?
perioral spread of the virus on the patient
Requirements for establishing a persistent viral infection include:
-evasion of immunological surveillance
-regulation of lytic potential
Incubation period for upper respiratory tract viral infections is typically:
The woman who is at greatest risk of delivering a symptomatic infant infected with CMV is a woman who:
has a primary CMV infection during her pregnancy
Enveloped viruses are usually released from the host cell by:
Name some symptoms that occur as a consequence of norovirus infection:
Abdominal cramping, diarrhea, Vomiting
Infection with HPV-18 can lead to:
What is the most common sexually transmitted infection in the U.S?
Warts of the oral mucosa may be treated by:
The smallpox vaccine is a related virus that causes a localized reaction at the site of inoculation. Vaccination site must be covered with sterile dressing to prevent dissemination of virus.
Both statements are true
What occurs as a consequence of smallpox vaccination?
formation of pustule at site of inoculation
Effective vaccines have led to the eradication of what disease:
What are common signs of pulmonary tuberculosis?
cough, fever, weight loss
A positive TB-skin test indicates that a person has active TB disease. Routine dental care should not be provided to patients with active TB disease.
The first statement is false, the second statement is true.
Which of the following populations has the highest risk of contracting TB?
DHC workers (over homeless people, Spelunkers, Veterinarians)
Recurrent intraoral Herpes simplex (RIHS) normally occurs on/in the ___ in the immunocompetent patient.
attached gingivae and hard palate
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