2016 research: “The household attack rate (i.e., rate of persons living with an infected person that develop symptoms of MPXV infection) was 50%.”

A 600-fold increase in monkeypox cases occurred in the Bokungu Health Zone of the Democratic Republic of the Congo during the second half of 2013; this increase prompted an outbreak investigation.

A total of 104 possible cases were reported from this health zone; among 60 suspected cases that were tested, 50 (48.1%) cases were confirmed by laboratory testing, and 10 (9.6%) tested negative for monkeypox virus (MPXV) infection. The household attack rate (i.e., rate of persons living with an infected person that develop symptoms of MPXV infection) was 50%. Nine families showed >1 transmission event, and >6 transmission events occurred within this health zone. Mean incubation period was 8 days (range 4–14 days).

The high attack rate and transmission observed in this study reinforce the importance of surveillance and rapid identification of monkeypox cases.”

Research: Extended Human-to-Human Transmission during a Monkeypox Outbreak in the Democratic Republic of the Congo

WHO: Mass vaccination is not required nor recommended for Monkeypox

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