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Fig. 3 | Porcine Health Management

Fig. 3

From: Introduction of a PRRSV-1 strain of increased virulence in a pig production structure in Spain: virus evolution and impact on production

Fig. 3

Temporal evolution of stillbirths and mummies in farms suffering PRRSV outbreaks of increased virulence compared to a farm infected by a strain of moderate virulence. The graphs show the percentages of stillbirths and mummies during 2020 and 2021 in three farms:M2 (A), M7 (B) and Nu4 (C) affected by the PRRSV strain of increased virulence compared to a PRRSV endemic farm (M4, D) where a moderate virulence isolate was circulating since before 2019. The red arrow shows the onset of the reproductive PRRS outbreak in each farm

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Porcine Health Management

ISSN: 2055-5660

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