Rubella is usually a mild disease ,but infection during pregnancy may cause severe congenital disorders particularly eye defect ,heart defect and deafness ,the virus is spread mainly by the air borne route with an incubation period of 2-3 weeks ,and infectivity from 1 week before symptoms until 1 week after the rash appears .
A maculopapular rash occurs on the face and trunk with mild fever ,occipital lymphadenopathy and sometimes transient arthralgia , similar rashes may occur with enteroviruses and parvo viruse infections . Rare complications are encephalitis and thrombocytopenia . Treatment is generally symptomatic , if there is concern about rubella infection in pregnancy aspirate blood for viral antibody levels and arrange urgent follow up by the obstetrician
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