Outbreak of Severe Zoonotic Vaccinia Virus Infection, Southeastern Brazil

Abstract

In 2010, a vaccinia virus isolate caused an atypically severe outbreak that affected humans and cattle in Brazil. Of 26 rural workers affected, 12 were hospitalized. Our data raise questions about the risk factors related to the increasing number and severity of vaccinia virus infections.

Keywords

• Vaccinia virus
• orthopoxvirus
• zoonoses
• Brazil
• viruses