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An unexpected human outbreak of the mosquitoborne Sindbis virus occurred in a previously nonendemic area of Sweden. At follow-up, 6-8 months after infection, 39% of patients had chronic arthralgia that affected their daily activities. Vectorborne infections may disseminate rapidly into new areas and cause acute and chronic disease.
Geographic distribution of the SINV outbreak in 2013 and previous occurrence of SINV infections…
Figure
Geographic distribution of the SINV outbreak in 2013 and previous occurrence of SINV infections in Sweden. Dark gray indicates the 2 northernmost counties in Sweden where the SINV IgG seroprevalence was 2.9% in 2009. SINV, Sindbis virus.
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