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Fig. 2 | Porcine Health Management

Fig. 2

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

Fig. 2

Impact of an increased virulence PRRSV isolate compared to a strain of moderate virulence. The graphs depict the temporal evolution of the abortion rate, fertile sow mortality and suckling piglet mortality starting on the 31st week of 2019 until the beginning of 2022. A–C farms (M2, Nu4 and M7) that suffered outbreaks caused by the increased virulence PRRSV strain. D A farm (M4) that was endemic instable for a Spanish PRRSV isolate of moderate virulence. The red arrows indicate the starting of the outbreak for each A, B and C farms, farm D had been recurrently positive since before 2019

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Porcine Health Management

ISSN: 2055-5660

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