Coinfections of African swine fever virus, porcine circovirus 2 and 3, and porcine parvovirus 1 in swine in Nigeria

Arch Virol. 2022 Dec;167(12):2715-2722. doi: 10.1007/s00705-022-05593-6. Epub 2022 Sep 22.

Abstract

As pig production increases in Africa, it is essential to identify the pathogens that are circulating in the swine population to assess pig welfare and implement targeted control measures. For this reason, DNA samples collected from pigs in Nigeria in the context of African swine fever monitoring were further screened by PCR for porcine circovirus 2 (PCV-2), porcine circovirus 3 (PCV-3), and porcine parvovirus 1 (PPV1). Forty-seven (45%) pigs were positive for two or more pathogens. Sequence analysis identified PCV-2 genotypes a, b, and d, while limited genetic heterogenicity was observed among PCV-3 strains. All except one of the PPV1 sequences were genetically distinct from those previously identified in other countries.

Keywords: African swine fever; Nigeria; coinfection; porcine circovirus; porcine parvovirus; swine.

MeSH terms

  • African Swine Fever Virus* / genetics
  • African Swine Fever*
  • Animals
  • Circoviridae Infections* / epidemiology
  • Circoviridae Infections* / veterinary
  • Circovirus* / genetics
  • Coinfection* / epidemiology
  • Coinfection* / veterinary
  • Nigeria / epidemiology
  • Parvovirus, Porcine* / genetics
  • Swine
  • Swine Diseases* / epidemiology