Studies on the prevalence, diagnostic algorithm and antimicrobial drug sensitivity of Streptococcus suis isolates from industrially reared pigs
From January 2022 to September 2022, a total of 58 swab samples were collected from an industrial pig farm located in South Bulgaria 54 samples from vaginal/cervical discharge of breeding sows and nasal mucosa of neonatal piglets (44 samples from sexually mature sows; 10 samples from suck-ling pig...
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Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
2025-09-01
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| Series: | Bulgarian Journal of Veterinary Medicine |
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| author | V. Galeva L. Ivanov V. Urumova |
| author_facet | V. Galeva L. Ivanov V. Urumova |
| author_sort | V. Galeva |
| collection | DOAJ |
| description | From January 2022 to September 2022, a total of 58 swab samples were collected from an industrial pig farm located in South Bulgaria 54 samples from vaginal/cervical discharge of breeding sows and nasal mucosa of neonatal piglets (44 samples from sexually mature sows; 10 samples from suck-ling piglets) and 4 tonsillar samples from dead or culled pigs. Out of the 58 swabs, 13 (22.4%) Strep-tococcus suis strains were isolated: 9 (20.4%) isolates from vaginal/cervical discharge of sows,
1 (10%) isolate from the nasal mucosa of a suckling piglet, and 2 strains (50%) from tonsils of dead or culled sows. One isolate (2.3%) from the vaginal/cervical discharge of breeding sows was deter-mined as serotype 2-1/2. Also, 15 strains (34.1%) identified as Streptococcus equi subsp. zooepi-demicus were isolated from vaginal/cervical discharge of breeding sows, and one tonsillar isolate (25%) was identified as Streptococcus dysgalactiae subsp. equisimilis. The resistant Streptococcus suis strains to tetracycline (91.7%), florphenicol (91.7%), enrofloxacin (91.7%) and colistin (75%) were more prevalent among streptococcal isolates. A multiresistant pattern including the nine tested antimicrobial drugs was demonstrated for three Streptococcus equi subsp. zooepidemicus strains (20%) isolated from vaginal/cervical discharge of breeding sows.
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| format | Article |
| id | doaj-art-7fe5cfcf68c24ca3b6b624c85fd6c834 |
| institution | OA Journals |
| issn | 1311-1477 1313-3543 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria |
| record_format | Article |
| series | Bulgarian Journal of Veterinary Medicine |
| spelling | doaj-art-7fe5cfcf68c24ca3b6b624c85fd6c8342025-08-20T02:37:37ZengFaculty of Veterinary Medicine, Trakia University, Stara Zagora, BulgariaBulgarian Journal of Veterinary Medicine1311-14771313-35432025-09-0128342443210.15547/bjvm.2024-0020Studies on the prevalence, diagnostic algorithm and antimicrobial drug sensitivity of Streptococcus suis isolates from industrially reared pigsV. Galeva0L. Ivanov1V. Urumova2Faculty of Veterinary Medicine, Trakia University, Stara Zagora, BulgariaFaculty of Veterinary Medicine, Trakia University, Stara Zagora, BulgariaFaculty of Veterinary Medicine, Trakia University, Stara Zagora, BulgariaFrom January 2022 to September 2022, a total of 58 swab samples were collected from an industrial pig farm located in South Bulgaria 54 samples from vaginal/cervical discharge of breeding sows and nasal mucosa of neonatal piglets (44 samples from sexually mature sows; 10 samples from suck-ling piglets) and 4 tonsillar samples from dead or culled pigs. Out of the 58 swabs, 13 (22.4%) Strep-tococcus suis strains were isolated: 9 (20.4%) isolates from vaginal/cervical discharge of sows, 1 (10%) isolate from the nasal mucosa of a suckling piglet, and 2 strains (50%) from tonsils of dead or culled sows. One isolate (2.3%) from the vaginal/cervical discharge of breeding sows was deter-mined as serotype 2-1/2. Also, 15 strains (34.1%) identified as Streptococcus equi subsp. zooepi-demicus were isolated from vaginal/cervical discharge of breeding sows, and one tonsillar isolate (25%) was identified as Streptococcus dysgalactiae subsp. equisimilis. The resistant Streptococcus suis strains to tetracycline (91.7%), florphenicol (91.7%), enrofloxacin (91.7%) and colistin (75%) were more prevalent among streptococcal isolates. A multiresistant pattern including the nine tested antimicrobial drugs was demonstrated for three Streptococcus equi subsp. zooepidemicus strains (20%) isolated from vaginal/cervical discharge of breeding sows. different clinical materialsidentification procedurepigsprevalencestreptococcus suis |
| spellingShingle | V. Galeva L. Ivanov V. Urumova Studies on the prevalence, diagnostic algorithm and antimicrobial drug sensitivity of Streptococcus suis isolates from industrially reared pigs Bulgarian Journal of Veterinary Medicine different clinical materials identification procedure pigs prevalence streptococcus suis |
| title | Studies on the prevalence, diagnostic algorithm and antimicrobial drug sensitivity of Streptococcus suis isolates from industrially reared pigs |
| title_full | Studies on the prevalence, diagnostic algorithm and antimicrobial drug sensitivity of Streptococcus suis isolates from industrially reared pigs |
| title_fullStr | Studies on the prevalence, diagnostic algorithm and antimicrobial drug sensitivity of Streptococcus suis isolates from industrially reared pigs |
| title_full_unstemmed | Studies on the prevalence, diagnostic algorithm and antimicrobial drug sensitivity of Streptococcus suis isolates from industrially reared pigs |
| title_short | Studies on the prevalence, diagnostic algorithm and antimicrobial drug sensitivity of Streptococcus suis isolates from industrially reared pigs |
| title_sort | studies on the prevalence diagnostic algorithm and antimicrobial drug sensitivity of streptococcus suis isolates from industrially reared pigs |
| topic | different clinical materials identification procedure pigs prevalence streptococcus suis |
| work_keys_str_mv | AT vgaleva studiesontheprevalencediagnosticalgorithmandantimicrobialdrugsensitivityofstreptococcussuisisolatesfromindustriallyrearedpigs AT livanov studiesontheprevalencediagnosticalgorithmandantimicrobialdrugsensitivityofstreptococcussuisisolatesfromindustriallyrearedpigs AT vurumova studiesontheprevalencediagnosticalgorithmandantimicrobialdrugsensitivityofstreptococcussuisisolatesfromindustriallyrearedpigs |