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. 2023 Sep 7;168(10):246.
doi: 10.1007/s00705-023-05865-9.

Coinfection of porcine astrovirus and other porcine viruses in diarrheic pigs in Haryana, India

Vaishali  1 , Renu Gupta  1 , Mohit Kumar  1 , Nitish Bansal  1 , Vivek  2 , Parveen Kumar  3 , Pawan Kumar  4 , Naresh Jindal  5
Affiliations

Coinfection of porcine astrovirus and other porcine viruses in diarrheic pigs in Haryana, India

Vaishali et al. Arch Virol. .

Abstract

In this study, 306 rectal swabs from diarrheal pigs of various ages (0-3 weeks, 3-6 weeks, and >6 weeks) were collected from 54 piggery units in different climatic zones in Haryana state, India. These samples were tested for the presence of porcine astrovirus (PAstV), porcine rotavirus group A (PRV-A), and classical swine fever virus (CSFV) by reverse transcription polymerase chain reaction (RT-PCR), and porcine circovirus 2 (PCV-2) by polymerase chain reaction (PCR). Out of the 306 samples tested, 153 (50%), 108 (35.3%), 32 (10.6%), and three (0.9%) tested positive for PAstV, PCV-2, PRV-A, and CSFV, respectively. A single infection was detected in 135 samples, while mixed infections were found in 77 samples: 70 with two viruses and seven samples with more than two. PAstV was detected most frequently (55.31%) in pigs aged 3-6 weeks. PCV-2 was more predominant in pigs aged 0-3 weeks (36.53%), whereas PRV-A was more common in pigs aged 3-6 weeks (11.3%). CSFV was observed in the age group of 0-3 weeks (1.92%). Phylogenetic analysis revealed the circulation of lineages 2 and 4 of PAstV in this region. Thus, it can be concluded that one or more than one virus is circulating in piggery units in Haryana, India.

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