Leptospira spp. Prevalence in Cats from Southern Italy with Evaluation of Risk Factors for Exposure and Clinical Findings in Infected Cats
Abstract
:1. Introduction
2. Results
2.1. Cat Demographic, Clinical and Clinicopathological Data
2.2. Leptospira spp. Antibody Prevalence
2.3. Leptospira spp. DNA Detection in Blood and Urine
2.4. Risk Factors and Correlation with Clinical and Laboratory Variables
3. Discussion
4. Materials and Methods
4.1. Power and Sample Size
4.2. Study Sites, Cat Enrollment and Sampling Procedures
4.3. Clinicopathological Evaluation
4.4. Microscopic Agglutination Test (MAT)
4.5. DNA Extraction from K3EDTA Blood and Urine Samples
4.6. Polymerase Chain Reaction for Detection of Leptospira DNA
4.7. Statistical Analysis
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Variable | All Cats | Ab+ | uDNA+ | bDNA+ |
---|---|---|---|---|
Region | ||||
Sicily | 26 (23.2) | 4 (23.5) | 1 (10.0) | 3 (75.0) |
Calabria | 86 (76.8) | 13 (76.5) | 9 (90.0) | 1 (25.0) |
Sex | ||||
Male | 51 (45.5) | 8 (47.1) | 2 (20.0) | 2 (50.0) |
Female | 61 (54.5) | 9 (52.9) | 8 (80.0) | 2 (50.0) |
Age group | ||||
Junior (6–24 months) | 28 (25.0) | 4 (23.5) | 3 (30.0) | 0 |
Adult (25–96 months) | 61 (54.5) | 8 (47.1) | 6 (60.0) | 3 (75.0) |
Senior (>96 months) | 23 (20.5) | 5 (29.4) | 1 (10.0) | 1 (25.0) |
Lifestyle and Origin | ||||
Outoor | 35 (31.2) | 4 (23.5) | 3 (30.0) | 1 (25.0) |
Outdoor and indoor | 16 (14.3) | 4 (23.5) | 2 (20.0) | 1 (25.0) |
Indoor | 61 (54.5) | 9 (53.0) | 5 (50.0) | 2 (50.0) |
Single-cat household | 17 (27.9) | 2 (22.2) | 2 (40.0) | 0 |
Multi-cat household | 29 (47.5) | 3 (33.3) | 2 (40.0) | 0 |
Rescue cattery | 15 (24.6) | 4 (44.5) | 1 (20.0) | 2 |
Foundling cat | 27 (44.3) | 4 (44.5) | 3 (60.0) | 2 |
Not-foundling cat | 34 (55.7) | 5 (55.5) | 2 (40.0) | 0 |
Cohabitation with dogs | 15 (13.4) | 2 (11.8) | 2 (20.0) | 0 |
No cohabitation with dogs | 97 (86.6) | 15 (88.2) | 8 (80.0) | 4 |
Enrollment Season | ||||
Autumn | 15 (13.4) | 3 (17.7) | 2 (20.0) | 1 (25.0) |
Winter | 61 (54.5) | 9 (52.9) | 2 (20.0) | 3 (75.0) |
Spring | 33 (29.5) | 4 (23.5) | 6 (60.0) | 0 |
Summer | 3 (2.6) | 1 (5.9) | 0 | 0 |
Environment | ||||
Urban | 84 (75.0) | 12 (70.6) | 8 (80.0) | 3 (75.0) |
Suburban | 26 (23.2) | 5 (29.4) | 2 (20.0) | 1 (25.0) |
Rural | 2 (1.8) | 0 | 0 | 0 |
Total | 112 | 17/111 | 10/111 | 4/109 |
Variable | All Cats | Ab+ | uDNA+ | bDNA+ |
---|---|---|---|---|
Mucous membranes | ||||
Normal | 106 (94.6) | 17 | 10 | 4 |
Pale | 5 (4.5) | 0 | 0 | 0 |
Jaundice | 1 (0.9) | 0 | 0 | 0 |
Body Condition Score < 3/5 ^ | 11 (9.8) | 4 (23.5) | 1 (10.0) | 1 (25.0) |
Muscle Condition Score > ¼ ^ | 15 (13.4) | 4 (23.5) | 0 | 1 (25.0) |
Lymph node enlargement | 27 (24.1) | 4 (23.5) | 3 (30.0) | 2 (50.0) |
Respiratory tract signs | 10 (8.9) | 0 | 1 (10.0) | 0 |
Gastrointestinal signs | 4 (3.6) | 0 | 1 (10.0) | 0 |
Skin lesions | 14 (12.5) | 3 (17.6) | 2 (20.0) | 1 (25.0) |
Ocular lesions | 6 (5.4) | 2 (11.8) | 0 | 1 (25.0) |
Oral lesions | 33 (29.5) | 4 (23.5) | 5 (50.0) | 0 |
Total | 112 | 17/111 | 10/111 | 4/109 |
Species | Serogroup | Serovar | Strain | n (%) | Ab Titer | ID | Sex | Age | Region | Month | Season | u+ | b+ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
L. borgpetersenii | Javanica | Poi | Poi | 9 (52.9) | 20 | 7 | F | 48 | S | February | Winter | − | + |
20 | 2 | F | 48 | C | January | Winter | − | − | |||||
20 | 8 | F | 8 | S | April | Spring | + | − | |||||
20 | 9 | F | 17 | C | November | Autumn | + | − | |||||
20 | 10 | F | 12 | C | January | Winter | − | − | |||||
20 | 11 | M | 192 | S | January | Winter | − | − | |||||
20 | 12 | M | 36 | C | January | Winter | − | − | |||||
20 | 13 | M | 48 | C | January | Winter | − | − | |||||
40 | 14 | F | 48 | S | April | Spring | − | − | |||||
L. borpetersenii | Ballum | Arborea | Arborea | 3 (17.6) | 20 | 16 | F | 6 | C | January | Winter | + | − |
40 | 6 | M | 120 | C | April | Spring | + | − | |||||
80 | 17 | F | 120 | C | January | Winter | − | − | |||||
L. borpetersenii | Mini | Mini | Sari | 1 (5.9) | 80 | 6 | M | 120 | C | April | Spring | + | − |
L. borgpetersenii | Ballum | Ballum | Mus 127 | 1 (5.8) | 80 | 1 | F | 6 | C | February | Winter | − | − |
L. interrogans | Australis | Bratislava | Jez Bratislava | 5 (29.4) | 20 | 2 | F | 48 | C | January | Winter | − | − |
20 | 3 | M | 168 | C | October | Autumn | − | + | |||||
20 | 4 | M | 72 | C | November | Autumn | − | − | |||||
40 | 5 | M | 9 | C | July | Summer | − | − | |||||
320 | 6 | M | 120 | C | April | Spring | + | − | |||||
L. interrogans | Australis | Lora | Lora | 1 (5.9) | 80 | 6 | M | 120 | C | April | Spring | + | − |
L. interrogans | Pomona | Pomona | Pomona | 1 (5.9) | 20 | 15 | M | 120 | C | April | Spring | − | − |
Leptospira PCR-u/b | Ab | n | Variable | p | OR | 95% CI |
---|---|---|---|---|---|---|
Positive | Positive | 6 | Monocytosis | 0.0206 | 10.14 | 1.964–47.64 |
Positive | Negative | 8 | Neutrophilia | 0.0027 | 19.14 | 3.528–106.2 |
Albumin decreased | 0.0154 | 11.25 | 2.213–56.95 | |||
Markers of inflammations | 0.0303 | ∞ | 1.167–∞ | |||
Negative | Positive | 11 | Anemia | 0.0329 | 5.286 | 1.441–18.9 |
Lymphocytosis | <0.0001 | 750 | 41.35–7904 | |||
Eosinopenia | 0.0315 | 7.714 | 1.614–33.66 | |||
Negative | Negative | 86 | - | - | - | - |
Leptospira Positivity | Anemia | Neutrophilia | Monocytosis | Eosinopenia | Hypoalbuminemia | Hyperglobulinemia | Increased ALT | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
FE | Srho | FE | Srho | FE | Srho | FE | Srho | FE | Srho | FE | Srho | FE | Srho | |
Ab+ versus Ab− | NS | rs = 0.198 p = 0.037 | NS | NS | p = 0.0001 OR = 24.82 95%CI = 4.973–125.2 | rs = 0.283 p = 0.004 | NS | NS | NS | NS | NS | NS | NS | rs = 0.372 p = 0.047 |
u+ versus u− | NS | NS | NS | NS | NS | rs = 0.203 p = 0.038 | NS | NS | NS | NS | p = 0.0328 OR = 4.803 95%CI = 1.229–16.55 | NS | NP | NS |
b+ versus b− | NP | NS | NS | rs = 0.200 p = 0.042 | NS | NS | NP | NS | NS | NS | NS | NS | NS | NS |
DNA+ versus DNA− | NS | NS | p = 0.0164 OR = 5.571 95%CI = 1.548–22.4 | rs = 0.288 p = 0.003 | NS | rs = 0.208 p = 0.036 | NS | NS | NS | NS | NS | NS | NS | NS |
Ab+ and/or u+ versus Ab− and/or u− | p = 0.015 OR = 4.32 95%CI = 1.434–12.23 | rs = 0.252 p = 0.008 | p = 0.0818 OR = 3.067 95%CI= 0.8726–9.158 | rs = 0.218 p = 0.027 | p = 0.0076 OR = 5.357 95%CI = 1.664–17.27 | rs = 0.292 p = 0.003 | p = 0.0487 OR = 4.75 95%CI = 1.249–17.35 | NS | NS | NS | NS | NS | NP | NS |
Ab+ and/or DNA+ versus Ab− and/or DNA− | p = 0.0399 OR = 3.792 95%CI = 1.282–10.7 | rs = 0.228 p = 0.016 | p = 0.0398 OR = 3.773 95%CI = 1.246–10.75 | rs = 0.257 p = 0.008 | p = 0.013 OR = 4.625 95%CI = 1.471–14.48 | rs = 0.265 p = 0.007 | NS | NS | p = 0.0345 OR = 4.471 95%CI = 1.227–15.98 | rs = 0.229 p = 0.020 | NS | NS | NP | NS |
Species | Serogroup | Serovar | Strain |
---|---|---|---|
L. borgpetersenii | Ballum | Ballum | Mus 127 |
L. interrogans | Canicola | Canicola | Hond Utrecht IV |
L. interrogans | Australis | Bratislava | Jez Bratislava |
L. kirschneri | Grippotyphosa | Grippotyphosa | Duyster |
L. interrogans | Icterohaemorragiae | Icterohaemorragiae | Kantorowic |
L. borgpetersenii | Javanica | Poi | Poi |
L. interrogans | Icterohaemorrhagiae | Copenhageni | M20 |
L kirschneri | Grippotyphosa | Grippotyphosa | Moskva V |
L. interrogans | Pomona | Pomona | Pomona |
L. interrogans | Sejroe | Hardjo | Hardjoprajitno |
L. borgpetersenii | Tarassovi | Tarassovi | Perepelitsin |
L. interrogans | Australis | Lora | Lora |
L.borpetersenii | Ballum | Arborea | Arborea |
L.borpetersenii | Mini | Mini | Sari |
L.biflexa | Semeranga | Patoc | Patoc I |
Oligo ID | Sequence | Sequence Source |
---|---|---|
LipgrF2 | 5′CGCTGAAATGGGAGTTCGTATGATTTCC3′ | lipL32 |
LipgrR2 | 5′GGCATTGATTTTTCTTCYGGGGTWGCC3′ | lipL32 |
LipgrP1 | 5′FAM GGCGAAATCGGKGARCCAGGCGAYGG3′BHQ1 | lipL32 |
IntoF2 | 5′TAGAATCATTGAATCTATCACATCTCATG3′ | Internal Control |
IntoR2 | 5′TTGAACTAAATGTAGACTAAAGATGATCG’3 | Internal Control |
IntoP1 | 5′TxRd TTCACATTAACATTCAATAATCAATCATGAA3′BHQ2 | Internal Control |
PlasintS1 | 5′CTATAGAATCATTGAATCTATCACATCTCATGT ACTTCACATTAACATTCAATAATCAATCATGAATTAATTCAAT TTCTGATATGAATCGATCATCTTTAGTCTACATTTAGTTCAATATATC3′ | Internal Control artificial template |
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Donato, G.; Masucci, M.; Hartmann, K.; Goris, M.G.A.; Ahmed, A.A.; Archer, J.; Alibrandi, A.; Pennisi, M.G. Leptospira spp. Prevalence in Cats from Southern Italy with Evaluation of Risk Factors for Exposure and Clinical Findings in Infected Cats. Pathogens 2022, 11, 1129. https://doi.org/10.3390/pathogens11101129
Donato G, Masucci M, Hartmann K, Goris MGA, Ahmed AA, Archer J, Alibrandi A, Pennisi MG. Leptospira spp. Prevalence in Cats from Southern Italy with Evaluation of Risk Factors for Exposure and Clinical Findings in Infected Cats. Pathogens. 2022; 11(10):1129. https://doi.org/10.3390/pathogens11101129
Chicago/Turabian StyleDonato, Giulia, Marisa Masucci, Katrin Hartmann, Marga G. A. Goris, Ahmed A. Ahmed, Joy Archer, Angela Alibrandi, and Maria Grazia Pennisi. 2022. "Leptospira spp. Prevalence in Cats from Southern Italy with Evaluation of Risk Factors for Exposure and Clinical Findings in Infected Cats" Pathogens 11, no. 10: 1129. https://doi.org/10.3390/pathogens11101129
APA StyleDonato, G., Masucci, M., Hartmann, K., Goris, M. G. A., Ahmed, A. A., Archer, J., Alibrandi, A., & Pennisi, M. G. (2022). Leptospira spp. Prevalence in Cats from Southern Italy with Evaluation of Risk Factors for Exposure and Clinical Findings in Infected Cats. Pathogens, 11(10), 1129. https://doi.org/10.3390/pathogens11101129