Interferons are a family of eukaryotic cell proteins classified according to the cell of origin. IFN-ɑ and IFN-β are produced by a variety of virus-infected cells. They A: act on target cells to inhibit viral replication B: act directly on the virus C: are virus-specific D: all of above

What is not the advantage of virus-targeting inhibitors? A: very specific B: less toxic C: easy for virus to generate mutant D: broad spectrum

The vaccine for measles is best characterized by() A: Bacteriocin B: Killed virus vaccine C: Inactivated virus vaccine D: Live virus vaccine E: Recombinant virus vaccine

German measles virus (rubella), a common cause of exanthema in children, is best described by which of the following statements A: Measles (rubeola) and German measles (rubella) are caused by the same virus B: Incubation time is approximately 3 to 4 weeks C: Vesicular rashes are characteristic D: Onset is abrupt with cough, coryza, and fever E: Specific antibody in the serum does not prevent disease

The pathogen of hemorrhagic fever with renal syndrome is A: Dengue virus B: hantavirus C: Xinjiang haemorrhagic fever virus D: Ebola virus E: Congo hemorrhagic fever virus

Which is the most common pathogen in infant acute bronchiolitis? A: Respiratory syncytial virus B: Influenza virus C: Rhinovirus D: Ecovirus E: Coxsackie virus

SARS-CoV-2 is a ____ A: RNA virus B: DNA virus C: Viroid D: Virusoid E: Prion

Which one can lead fetal anomaly in pregnant? A: Influenza B virus B: encephalitis B virus C: Rubella virusv D: Mumps virus E: Poliovirus

孕妇感染后可引起胎儿先天性小头畸形的病毒是 A: 森林脑炎病毒 B: Zika virus C: Dengue virus D: HIV E: Ebola virus

Negri body is A: Chlamydia inclusion B: measles inclusion C: Rabies virus inclusion D: herpes virus inclusion