Tick-borne blood parasites in small ruminants: An epidemiological study of Anaplasma sp. and Babesia sp. in Cagayan, Philippines

Paper Details

Research Paper 05/02/2026
Views (16)
current_issue_feature_image
publication_file

Tick-borne blood parasites in small ruminants: An epidemiological study of Anaplasma sp. and Babesia sp. in Cagayan, Philippines

Kathlyn B. Cruz*, Jhaysel G. Rumbaoa, Mary Ann M. Santos, Bryan Jerome R. Bassig, John Michael U. Tabil
J. Biodiv. & Environ. Sci. 28(2), 34-48, February 2026.
Copyright Statement: Copyright 2026; The Author(s).
License: CC BY-NC 4.0

Abstract

This study examined the incidence of tick-borne blood parasites, particularly Anaplasma sp. and Babesia sp., among small ruminants in the three (3) districts of Cagayan, Philippines. A total of 384 (191 sheep and 193 goats) small ruminants were examined for the presence of tick-borne blood parasites.  The findings revealed that Anaplasma sp. had an overall incidence of 14.58% (56/384), while Babesia sp. revealed a slightly higher incidence of 16.67% (64/384). Anaplasma sp. incidence rate differed by district; highest in District II, III and I, chronologically. While Babesia sp. incidence rate is highest in District III, followed by I and II. Sheep had greater rates of tick-borne blood infection, and are vulnerable to Babesia spA number of host-related and management determinants were substantially correlated with tick-borne blood parasite infection. Infections were higher in females (70.57%), who were more likely than males (29.43%). Additionally, compared to younger animals, adult animals (>8 months) had significantly higher incidence rate of 28.9% (p= 0.0013). The incidence rate of tick-borne blood parasites was lowest in native breed (3.13%), followed by pure breed (18.54%), while cross breed (20.42%) is highest. The study found significant correlations between incidence rates and species, sex, age, and breed, indicating that tick-borne blood parasitic infections in the 3 districts are influenced by a variety of factors. These findings demonstrate that tick-borne blood parasite diseases continue to be prevalent in the small ruminant population of Cagayan, posing a threat to the animals’ health and productivity. Also, adopting the One Health Approach to lessen the negative effects of these infections will include farmer education initiatives, integrated tick control and prevention programs for livestock and use of environment friendly acaricides are crucial.

Aktas M, Altay K, Dumanli N. 2011. Molecular detection and identification of Anaplasma and Ehrlichia species in cattle from Turkey. Ticks and Tick-Borne Diseases 2(1), 62–65.

Bock R, Jackson L, de Vos A, Jorgensen W. 2004. Babesiosis of cattle. Parasitology 129(S1), S247–S269.

Cheah TS, Sani RA, Chandrawathani P, Sansul B, Dahlan I. 1999. Epidemiology of T. evansi infection in crossbred dairy cattle in Malaysia. Tropical Animal Health & Production 31, 25–31.

Cruz KB, Maguigad JMD, Santos MM, Allam JD, Casibang JS, Manuel JB. 2021. Surveillance of blood parasites of naturally-grown small ruminants in selected province of Region 02. International Journal of Research and Technology in Agriculture and Fisheries 1(1), 13–21.

Cruz KB, Mangrubang NR, Vinoya BCJ, Cusipag JT, Tanguilan JH. 2024. Enhancing small ruminant farm efficiency: evidence-based management strategies from Cagayan, Philippines. International Journal of Biosciences 25(5), 223–230.

Cruz KB. 2018. Detection of pathogens on the brown dog tick, Rhipicephalus sanguineus sensu lato (s.l.) (Arachnida: Acari: Ixodidae) in the Philippines. Philippine Journal of Science 147(4), 741–751.

Department of Agriculture – Regional Field Office 02. 2020. Cagayan Valley regional agricultural profile. Department of Agriculture, Philippines.

Devendra C, McLeroy GB. 1982. Goat and sheep production in the tropics. Revised edition. Longman Group Limited.

Farooq U, Ijaz M, Ahmed A, Anwar MI, Ali S. 2017. Prevalence and associated risk factors of hemoprotozoan parasites in cattle and buffaloes of District Bahawalpur, Punjab, Pakistan. Pakistan Journal of Zoology 49(2), 583–589.

Food and Agriculture Organization of the United Nations. 2018. Small ruminant production and the smallholder farmers’ contribution to food security in developing countries. FAO. https://www.fao.org

Gharbi M, Sassi L, Dorchies P, Darghouth MA. 2006. Infection of calves with Theileria annulata in Tunisia: clinical aspects and histopathological findings. Veterinary Parasitology 137(1–2), 142–149.

Karimuribo ED, Kusiluka LJM, Mellau LSB, Kambarage DM. 2011. Clinico-epidemiological features of tick-borne diseases in small ruminants in a semi-arid area of Tanzania. Veterinary Research Communications 35(4), 255–263.

Kocan KM, de la Fuente J, Blouin EF, Garcia-Garcia JC. 2004. Anaplasma marginale (Rickettsiales: Anaplasmataceae): recent advances in defining host-pathogen adaptations of a tick-borne rickettsia. Parasitology 129(S1), S285–S300.

Philippine Statistics Authority. 2021. Province of Cagayan. https://psa.gov.ph/classification/psgc/?q=psgc/city/021500000

Radostits OM, Gay CC, Hinchcliff KW, Constable PD. 2007. Veterinary medicine: A textbook of the diseases of cattle, horses, sheep, pigs, and goats. Saunders Elsevier.

Ristic M. 1988. Babesiosis of domestic animals and man. CRC Press.

Roberts LS, Janovy J. 2013. Foundations of parasitology. 9th ed. McGraw-Hill Education.

Salih DA, El Hussein AM, Singla LD. 2015. Diagnostic approaches for tick-borne hemoparasitic diseases in livestock. Journal of Veterinary Medicine and Animal Health 7(2), 45-56. https://doi.org/10.5897/JVMAH2014.0352

Taylor MA, Coop RL, Wall RL. 2007. Veterinary parasitology. 3rd ed. Blackwell Publishing.

Taylor MA, Coop RL, Wall RL. 2016. Veterinary parasitology. 4th ed. Wiley-Blackwell.

Uilenberg G. 2006. Babesia – a historical perspective. Veterinary Parasitology 138, 3–10.

World Organization for Animal Health. 2021. One Health approach: tackling health threats at the animal-human-environment interface. OIE. https://www.woah.org/en/what-we-do/global-initiatives/one-health/

Ybañez RHD, Ybañez AP, Perez ZO, Gabotero SR, Yandug RM, Inokuma H. 2013. Detection of Ehrlichia canis, Anaplasma platys, Babesia vogeli, and Hepatozoon canis in Philippine dogs using molecular diagnostic techniques. Tropical Biomedicine 30(3), 454–462.

Yitayew D, Derso S. 2015. Tick-borne hemoparasitic diseases of ruminants: a review. Advances in Biological Research 9(4), 210–224.

Zahid IA, Latif M, Baloch KB. 2005. Incidence of endoparasites in exotic cattle calves. Pakistan Veterinary Journal 25(1), 47–48.

Zintl A, Mulcahy G, Skerrett HE, Taylor SM, Gray JS. 2003. Babesia divergens, a bovine blood parasite of veterinary and zoonotic importance. Clinical Microbiology Reviews 16(4), 622–636.

Related Articles

Diversity, spatial and seasonal distribution of gastropod molluscs in Taï national park (Côte d’Ivoire): Influence of environmental factors

Doue Obin*, Memel Jean-Didié, Kouadio Behegbin Habib Herbert, J. Biodiv. & Environ. Sci. 28(2), 20-33, February 2026.

Assessment of heavy metal levels in spring water of Dansolihon, Cagayan de Oro City

Faith M. Guimary*, Romeo M. Del Rosario, Angelo Mark P. Walag, J. Biodiv. & Environ. Sci. 28(2), 12-19, February 2026.

Evaluating curriculum alignment, accuracy, and readability of ‘environmental disaster, sanitation, and waste management

Analyn I. Diola*, Priscilla R. Castro, J. Biodiv. & Environ. Sci. 28(2), 1-11, February 2026.

Above and below ground carbon stock assessment of natural and planted mangrove forest in Davao Occidental, Philippines

C. F. Mangaga*, W. T. Tatil, H. A. R. Quiaoit, P. D. Suson, J. Biodiv. & Environ. Sci. 28(1), 157-167, January 2026.

Extraction and characterization of distilled water from by-product of salt refinery processing

Analyn I. Diola*, Eric A. Cunanan, Irene A. De Vera, Christian Garret F. Aquino, Julie M. Agpaoa, J. Biodiv. & Environ. Sci. 28(1), 151-156, January 2026.

Vulnerability to illegal, unreported and unregulated (IUU) fishing: The case of the Talusan, Zamboanga Sibugay, Philippines

Angelica M. Darunday*, Judy Ann H. Fernandez, Shekinah L. Ogoc, Norlika D. Moti, Larry C. Herbito, Armi G. Torres, J. Biodiv. & Environ. Sci. 28(1), 138-150, January 2026.

Socio-ecological dimensions of intertidal gleaning: The use of local ecological knowledge to identify commercially important gastropods in Iligan Bay, Philippines

Katrina Flores, Armi G. Torres, Wella T. Tatil, Ivane R. Pedrosa-Gerasmio*, J. Biodiv. & Environ. Sci. 28(1), 126-137, January 2026.

Conservation assessment of the marine ornamental fish species Pomacanthus imperator (Emperor angelfish) in the Philippines

Timothy Jan L. Adel*, Armi G. Torres, J. Biodiv. & Environ. Sci. 28(1), 114-125, January 2026.