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Ribeiro MG, Pereira TT, de Lima Paz PJ, de Almeida BO, Cerviño CSA, Rodrigues CA, Santos GTS, de Souza Freire LM, Portilho FVR, Filho MFÁ, Paschoal NR, Bello TS, Megid J, Langoni H, Appolinário CM, Borges AS, Amorim RM, Giuffrida R, de Oliveira Filho JP, Siqueira AK, Listoni FJP, Paes AC. Bacterial identification in cerebrospinal fluid of domestic species with neurologic signs: a retrospective case-series study in 136 animals (2005-2021). Braz J Microbiol 2023; 54:449-457. [PMID: 36571673 PMCID: PMC9944471 DOI: 10.1007/s42770-022-00891-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/10/2022] [Indexed: 12/27/2022] Open
Abstract
Central nervous system (CNS) infections comprise life-threatening clinical conditions in domestic species, and are commonly related to severe sequelae, disability, or high fatality rates. A set of bacterial pathogens have been identified in central nervous infections in livestock and companion animals, although the most of descriptions are restricted to case reports and a lack of comprehensive studies involving CNS-related bacterial infections have been focused on a great number of domestic species. In this scenario, we retrospectively investigated selected epidemiological data, clinical findings, bacteriological culture, and in vitro susceptibility patterns of 136 nonrepetitive neurologic cases in domestic species (2005-2021). Bacterial isolates were recovered from 25% (34/136) of the cerebrospinal fluid (CSF) sampled. The isolates were obtained from cattle (9/136 = 6.6%), dogs (7/136 = 5.1%), horses (6/136 = 4.4%), goats (3/136 = 2.2%), pigs (3/136 = 2.2%), sheep (3/136 = 2.2%), cats (2/136 = 1.5%), and asinine (1/136 = 0.7%). Among animals with bacterial isolation, Staphylococcus aureus (6/34 = 17.6%), Escherichia coli (5/34 = 14.7%), Staphylococcus beta-hemolytic (5/34 = 14.7%), and Trueperella pyogenes (3/34 = 8.8%) were predominant, in addition to a miscellaneous of other bacteria isolated in minor frequency, e.g., Corynebacterium pseudotuberculosis, Enterobacter cloacae, Mannheimia haemolytica, Pseudomonas aeruginosa, and Streptococcus equi subsp. equi. In vitro susceptibility tests of isolates revealed that amoxicillin/clavulanic acid (11/13 = 84.6%), cephalexin (9/11 = 81.8%), and florfenicol (9/12 = 75%) were the most effective antimicrobials. Conversely, isolates exhibited resistance mainly to tetracycline (6/10 = 60%), penicillin (6/11 = 54.5%), and trimethoprim/sulfamethoxazole (5/11 = 45.5%). Also, multidrug resistance to ≥ 3 classes of antimicrobials was found in 23.5% (8/34) strains. Data relative to the outcome was available in 79.4% (27/34) of animals that had bacterial isolation, and from these, the lethality rate was 92.6% (25/27). Incoordination (14/34 = 41.2%), recumbency (11/34 = 32.4%), apathy (10/34 = 29.4%), anorexia (9/34 = 26.5%), blindness (7/34 = 20.6%), seizure (6/34 = 17.6%), limb paresis (5/34 = 14.7%), head-pressing (4/34 = 11.8%), and nystagmus (3/34 = 8.8%) were the most frequent clinical signs. A variety of bacterial pathogens were identified in the CSF of domestic species showing neurologic signs, with a predominance of staphylococci, streptococci, and enterobacteria. High lethality of cases, poor in vitro efficacy of conventional antimicrobials, and a high in vitro multidrug resistance pattern of isolates were seen. Our results contribute to etiological characterization, antimicrobial resistance patterns, and clinical-epidemiological findings of bacterial infections in domestic species with neurological signs.
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Affiliation(s)
- Márcio Garcia Ribeiro
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil.
| | - Thiago Tourinho Pereira
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Patrik Júnior de Lima Paz
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Beatriz Oliveira de Almeida
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Carmen S Araújo Cerviño
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Carolina Aparecida Rodrigues
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Gabrielly Terra Sartori Santos
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Larissa Maria de Souza Freire
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Fábio Vinicius Ramos Portilho
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Marcelo Fagali Árabe Filho
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Natália Rodrigues Paschoal
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Thaís Spessotto Bello
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Jane Megid
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Helio Langoni
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Camila Michele Appolinário
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Alexandre Secorun Borges
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Rogério Martins Amorim
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Rogério Giuffrida
- School of Veterinary Medicine, University of Western São Paulo - UNOESTE, Presidente Prudente, SP, Brazil
| | | | - Amanda Keller Siqueira
- School of Veterinary Medicine, Midwestern State University - UNICENTRO, Guarapuava, PR, Brazil
| | - Fernando José Paganini Listoni
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
| | - Antonio Carlos Paes
- Department of Animal Production and Preventive Veterinary Medicine, Faculty of Veterinary Medicine and Animal Sciences - FMVZ, Sao Paulo State University - UNESP, Botucatu, SP, Brazil
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