Key result
ASFV vastly outpaces PRRSV-2 in pig samples with ~88% positivity and increasing annual prevalence.
Why the study?
There was a paucity of region-specific data, including demographic and spatial risk factors, for African swine fever virus and Porcine reproductive and respiratory syndrome virus Type 2.
There is a high prevalence of ASFV (88.46%) in pigs in Sikkim, India, which has increased over time, highlighting the need for targeted disease monitoring in the region.
AbstractAfrican swine fever virus (ASFV) and Porcine reproductive and respiratory syndrome virus Type 2 (PRRSV-2) are listed as notifiable diseases by the World Organisation for Animal Health due to their pathogenicity and their abilityto affect the swine industry, leading to economic losses. This study aims to address the paucity ofregion-specific data, including demographic and spatial risk factors. Analyzing a total of 182 biological samples collected from pigs in the period of 2022-2025, this study employed the OIE-recommended qPCR procedure. ASFV was detectedin 88.46%, and its prevalence increased across years, while PRRSV-2cases were limited to 2022 and found to have an 11.54% positivity rate. Statistically significant associations were observed betweenvirus prevalence and factors such as age group and sampling year (p < 0.0001). These findings are significant for understanding the shifting dynamics of swine viral infections in the region and guiding targeted disease monitoring.
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Muruganantham et al. (2025) studied this question. African swine fever virus (ASFV) was detected in 88.46% of pig samples, with prevalence increasing annually, whereas PRRSV-2 had an 11.54% positivity rate in 2022.
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