All are true regarding hantaan virus except:
Ans. (a) DNA virus Hantaan virus is an RNA virus belong to genus Hantavirus and family Bunya viridiae. It causes two syndromes: a. Hemorrhagic fever with renal syndrome (HFRS) or Manchurian epidemic HF or rodent bone nephropathy It occurs in two forms: Epidemic nephritis-milder form Epidemic hemorrhagic fever-serious form Resembles typhoid, leptospirosis and scrub typhus clinically. Genus hantavirus contain four species-Hantaan, Seoul, puumala and Hill virus. They are natural pathogen of rodents so considered as robovirus and not stirctly an arbovirus infection. Major host for hantaan: Field mice - Transmission from rodent to rodent and rodent to human is primarily respiratory, by inhalation of virus con tained in dried excreta. Diagnosis: Demonstrating IgM by ELISA or of rising titre of immune adherence hemagglutinating antibodies in paired sera. b. Flantavirus pulmonary syndrome Caused by new Hantavirus the Sin Nombre (meaning nameless) virus which is associated with deer, mouse and other rodents. No arbovirus is linked in transmission. Transmission occurs by inhalation of virus areosol in dried rodent feces.
DNA virus
Carried by rodents
Causes recurrent respiratory infection
Hemorrhagic manifestation may occur