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Pegu SR, Sonowal J, Rajkhowa S, Jyoti Das P, Sengar GS, Deb R, Choudhury M, Deka NJ, Paul S, Doley J, Sarma DK, Das S, Mohan NH, Thomas R, Gupta VK. Incidences of Helicobacter infection in pigs and tracing occupational hazard in pig farmers. Comp Immunol Microbiol Infect Dis 2024; 106:102128. [PMID: 38309206 DOI: 10.1016/j.cimid.2024.102128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/30/2023] [Accepted: 01/12/2024] [Indexed: 02/05/2024]
Abstract
Helicobacter species (spp.) is a gram-negative spiral-shaped motile bacterium that causes gastritis in pigs and also colonizes in the human stomach. The present study assessed the prevalence of Helicobacter spp. in pig gastric mucosa and the stool of pig farmers in Assam, India. A total of 403 stomach samples from pig slaughter points, 74 necropsy samples of pigs from pig farms, and 97 stool samples from pig farmers were collected. Among the pig stomach samples, 43 (20.09%) of those with gastritis showed the presence of Gram-negative, spiral-shaped organisms, while only 3.04% of stomach samples without lesions had these organisms. Scanning Electron Microscopy (SEM) of urease-positive stomach samples revealed tightly coiled Helicobacter bacteria in the mucus lining. Histopathological examination showed chronic gastritis with hemorrhagic necrosis, leucocytic infiltration, and lymphoid aggregates. PCR confirmed the presence of Helicobacter suis in 19.63% of pig stomach samples and 2.08% of pig farmer stool samples. Additionally, 3.12% of the stool samples from pig farmers were positive for Helicobacter pylori. Phylogenetic analysis revealed distinct clusters of Helicobacter suis with other Helicobacter spp. These findings highlight the prevalence of Helicobacter in both pig gastric mucosa and pig farmer stool. The findings highlight the need for improved sanitation and hygiene practices among pig farmers to minimize the risk of Helicobacter infection in humans.
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Affiliation(s)
- Seema Rani Pegu
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India.
| | - Joyshikh Sonowal
- Multidisciplinary Research Unit, Jorhat Medical College and Hospital, Jorhat 785001, Assam, India.
| | - Swaraj Rajkhowa
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India
| | - Pranab Jyoti Das
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India.
| | | | - Rajib Deb
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India
| | - Manjisa Choudhury
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India
| | - Naba Jyoti Deka
- College of Veterinary Science, AAU, Khanapara, Guwahati 781022, Assam, India
| | - Souvik Paul
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India
| | - Juwar Doley
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India
| | - Dilip Kumar Sarma
- College of Veterinary Science, AAU, Khanapara, Guwahati 781022, Assam, India
| | - Samir Das
- ICAR Research Complex for NEH Region, Umiam 793103, Meghalaya, India
| | - N H Mohan
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India
| | - Rajendran Thomas
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India
| | - Vivek Kumar Gupta
- ICAR, National Research Centre on Pig, Rani, Guwahati 781131, Assam, India
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