First Serological Evidence of Crimean-Congo Hemorrhagic Fever Virus Infections in Croatia: A Multispecies Surveillance Approach Emphasising the Role of Sentinel Hosts
Abstract
1. Introduction
2. Materials and Methods
3. Results
3.1. Serological Results in Different Animal Species
3.2. Geographic Distribution of Seropositive Animals
3.3. Association of Age and Sex with Seroprevalence in Sheep and Horses
3.4. Molecular Testing
4. Discussion
5. Conclusions
6. Research Limitations
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Abbreviations
CCHFV | Crimean-Congo hemorrhagic fever virus |
DAS-ELISA | Double-Antigen Sandwich Enzyme-Linked Immunosorbent Assay |
q RT-PCR | quantitative reverse-transcription polymerase chain reaction |
CROOH | Establishment of a coordinated disease surveillance system (in Croatia) in accordance with the OH approach |
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Age in Years (n) | Sex (n) | Region (n) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Species | N | <1 | 1–2 | >2 | NA | M | F | NA | EC | CC | LC | D | |
Cattle | 276 | - | - | - | 276 | - | - | 276 | 276 | - | - | - | |
Goats | 57 | - | - | - | 57 | - | - | 57 | 57 | - | - | - | |
Sheep | 336 | 16 | 17 | 151 | 152 | 6 | 177 | 153 | - | - | - | 336 | |
Dog | 304 | 13 | 71 | 207 | 13 | 125 | 109 | 70 | 128 | 50 | 70 | 56 | |
Cat | 196 | 46 | 37 | 103 | 10 | 78 | 85 | 33 | 101 | 53 | 9 | 33 | |
<1 | 1–3 | 4–14 | >14 | NA | |||||||||
Horse | 304 | 8 | 46 | 104 | 38 | 108 | 74 | 152 | 78 | 71 | 58 | 113 | 62 |
Species | Tested (n) | Positive (n) | Prevalence (%) | 95%CI (%) |
---|---|---|---|---|
Sheep | 336 | 95 | 28.3 | 23.5–33.4 |
Horses | 304 | 13 | 4.3 | 2.3–7.2 |
Cats | 196 | 1 | 0.5 | 0.01–2.8 |
Cattle | 276 | 0 | 0.0 | 0.0–1.3 |
Goats | 57 | 0 | 0.0 | 0.0–6.3 |
Dogs | 304 | 0 | 0.0 | 0.0–1.2 |
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Miletic, G.; Coric, I.; Kovac, S.; Skrinjaric, A.; Kamber Taslaman, M.; Bozikovic, M.; Barbic, L.; Masovic, V.; Prpic, J.; Jemersic, L.; et al. First Serological Evidence of Crimean-Congo Hemorrhagic Fever Virus Infections in Croatia: A Multispecies Surveillance Approach Emphasising the Role of Sentinel Hosts. Viruses 2025, 17, 1335. https://doi.org/10.3390/v17101335
Miletic G, Coric I, Kovac S, Skrinjaric A, Kamber Taslaman M, Bozikovic M, Barbic L, Masovic V, Prpic J, Jemersic L, et al. First Serological Evidence of Crimean-Congo Hemorrhagic Fever Virus Infections in Croatia: A Multispecies Surveillance Approach Emphasising the Role of Sentinel Hosts. Viruses. 2025; 17(10):1335. https://doi.org/10.3390/v17101335
Chicago/Turabian StyleMiletic, Gorana, Ivona Coric, Snjezana Kovac, Alenka Skrinjaric, Magda Kamber Taslaman, Margarita Bozikovic, Ljubo Barbic, Viktor Masovic, Jelena Prpic, Lorena Jemersic, and et al. 2025. "First Serological Evidence of Crimean-Congo Hemorrhagic Fever Virus Infections in Croatia: A Multispecies Surveillance Approach Emphasising the Role of Sentinel Hosts" Viruses 17, no. 10: 1335. https://doi.org/10.3390/v17101335
APA StyleMiletic, G., Coric, I., Kovac, S., Skrinjaric, A., Kamber Taslaman, M., Bozikovic, M., Barbic, L., Masovic, V., Prpic, J., Jemersic, L., & Stevanovic, V. (2025). First Serological Evidence of Crimean-Congo Hemorrhagic Fever Virus Infections in Croatia: A Multispecies Surveillance Approach Emphasising the Role of Sentinel Hosts. Viruses, 17(10), 1335. https://doi.org/10.3390/v17101335