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(27) Portugaliza, H.P., de los Reyes C.J.C., Gundran, R.S., Salvador, R.T. (2026). Farm-level risk factors and post-outbreak perceptions of African swine fever among pig raisers on Leyte Island, Philippines: A case-control study. Preventive Veterinary Medicine, 254: 106922. https://doi.org/10.1016/j.prevetmed.2026.106922
(26) Ybañez, A.P., Cunanan, E.E., Flores, S.P., Tamayo, K.M., Garciano Jr, S.L., Tolentino, J.P., Ybañez, R.H., Portugaliza, H.P., Ulanday, G.E.L., Barrios, M.B. and Villanueva, M.A., 2026. A Retrospective Study on Canine Parvovirus Cases (2018-2024) in Cebu, Philippines. Annals of Tropical Research.
(25) Ybañez, A., Sabanate, G., Teñoso, M.M.S., Alberio, S., Aycardo, G., Alo, M.T.L., Garciano, S.J., Destajo, R., Ybañez, R.H., Ulanday, G.E. and Portugaliza, H.P. (2026). Retrospective Study on Canine Distemper Cases in Cebu, Philippines (2019-2024). Annals of Tropical Research, 48 (1).
(24) Portugaliza, H. P. (2025). Local ASF challenges: The Philippine perspective on ASF stamping-out policy. Frontiers in Veterinary Science, 12, 1691490. 10.3389/fvets.2025.1691490
(23) Cabodil, V.A. & Portugaliza, H.P. (2025). Understanding the knowledge, attitudes, and practices of stakeholders in reporting African swine fever cases in Abuyog, Leyte, Philippines. Journal of Advanced Veterinary and Animal Research. 12(2) 629-646. https://doi.org/10.5455/javar.2025.l927
(22) Portugaliza, H. P., & Godinez, C. J. P. (2024). A transdisciplinary approach to combatting the threat of African swine fever in Philippine Endemic Pigs. Annals of Tropical Research, 46(2), 159-166.
https://doi.org/10.32945/atr4629.2024
(21) Portugaliza, H. P. (2024). Seroprevalence of African swine fever in pigs for slaughter in Leyte, Philippines. Journal of Advanced Veterinary and Animal Research, 11(1) 66-70.
http://doi.org/10.5455/javar.2024.k748
(20) Portugaliza, H. P., Tocmo, I. L., & Fernandez, T. J. (2024). Periodicity of Ascaridia galli egg excretion in experimentally infected chicken in the Philippines. Journal of Parasitic Diseases, 48: 53-58.
(19) Wheless, SMS and Portugaliza, HP. 2023. Disease recognition and early reporting of suspected African Swine Fever in Baybay City, Leyte, Philippines: A KAP study. NRCP Research Journal, 22(2): 196-235,
https://researchjournal.nrcp.dost.gov.ph/client/ejournal/get_articles/XXII/25
(18) Conde, MDP, Portugaliza, HP, Lañada, EB. 2022. Prevalence of Toxocara canis infection in dogs and Toxocara egg environmental contamination in Baybay City, Leyte, Philippines. Journal of Parasitic Diseases, 46 (2), https://doi.org/10.1007/s12639-022-01525-y
(17) Lañada, EB, Portugaliza, HP, Blanza, AI, Espejo, MCC, Pagente, MDA. 2022. Conventional biotyping revealed Mycoplasma and antimicrobial resistant Escherichia coli and Salmonella isolates during a disease outbreak in broiler farms and hatcheries in Leyte, Philippines. Annals of tropical research, 44(1), pp. 74-85, https://doi.org/10.32945/atr4416.2022
(16) Portugaliza, HP, Natama, HM, Guetens P, Rovira-Vallbona E, Somé AM, Millogo A, Ouédraogo DF, Valéa I, Sorgho H, Tinto H, van Hong N, Sitoe A, Varo R, Bassat Q, Cortés A, Rosanas-Urgell, A. 2022. Plasmodium falciparum sexual conversion rates can be affected by artemisinin-based treatment in naturally infected malaria patients. eBioMedicine, 83: 104198, https://doi.org/10.1016/j.ebiom.2022.104198
(15) Casas-Vila, N, Pickford, AK, Portugaliza, HP, Tintó-Font E & Cortés A. 2021. Transcriptional analysis of tightly synchronized Plasmodium falciparum intraerythrocytic stages by RT-qPCR. Methods in molecular biology, 2369, pp.165-185, https://link.springer.com/protocol/10.1007/978-1-0716-1681-9_10
(14) Portugaliza, HP, Miyazaki, S, Geurten, FJ, Pell, C, Rosanas-Urgell, A. Janse, CJ and Cortés, A, 2020. Artemisinin exposure at the ring or trophozoite stage impacts Plasmodium falciparum sexual conversion differently. Elife, 9, p.e60058 https://doi.org/10.7554/eLife.60058
(13) Portugaliza, HP, Llorà-Batlle, O, Rosanas-Urgell, A and Cortés, A, 2019. Reporter lines based on the gexp02 promoter enable early quantification of sexual conversion rates in the malaria parasite Plasmodium falciparum. Scientific reports, 9(1), pp.1-12 https://doi.org/10.1038/s41598-019-50768-y
(12) Portugaliza, HP, Galatas, B, Nhantumbo, H, Djive, H, Murato, I, Saúte, F, Aide, P, Pell, C and Munguambe, K, 2019. Examining community perceptions of malaria to inform elimination efforts in Southern Mozambique: a qualitative study. Malaria journal, 18: 232 https://doi.org/10.1186/s12936-019-2867-y
(11) Ludevese, FL, Ludevese-Pascual, G and Portugaliza, HP, 2019. Molluscicidal activity of tuba-tuba (Jatropha curcas L.) crude leaf extracts against Oncomelania hupensis quadrasi Möllendorf. Journal of science, engineering and technology, 6, pp.177-186. https://www.ijterm.org/index.php/jset/article/view/47
(10) Portugaliza HP, Balaso IMC, Descallar JCB, Lañada EB. 2019. Prevalence, risk factors, and spatial distribution of Fasciola in carabao and intermediate host in Baybay, Leyte, Philippines. Veterinary parasitology: regional studies and reports. 15, p.100261 https://doi.org/10.1016/j.vprsr.2018.100261
(9) Cabardo DE and Portugaliza HP. 2017. Anthelmintic activity of Moringa oleifera seed aqueous and ethanolic extracts against Haemonchus contortus eggs and third stage larvae. International journal of veterinary science and medicine, 5(1): 30-34. https://doi.org/10.1016/j.ijvsm.2017.02.001
(8) Rupa APM, Portugaliza HP. 2016. Prevalence and risk factors associated with gastrointestinal nematode infection in goats raised in Baybay city, Leyte, Philippines. Veterinary world, 9(7): 728-734 https://doi.org/10.14202/vetworld.2016.728-734
(7) Cormanes JMY, Portugaliza HP, Quilicot AMM. 2016. In vivo anthelmintic activity of pineapple (Ananas comosus Merr.) fruit peeling juice in semi-scavenging Philippine native chicken naturally co-infected with Ascaridia galli and Heterakis gallinarum. Livestock research for rural development. Volume 28 (5): Article 82. http://www.lrrd.org/lrrd28/5/corm28082.html
(6) Portugaliza, HP and MA Bagot. 2015. Different species of lice (Phthiraptera), fleas (Siphonaptera) and ticks (Ixodida) collected from livestock, poultry, reptile and companion animal in Leyte Island, Philippines. Livestock research for rural development, 27 (8): Article 151.
(5) Portugaliza HP and Torregoza NRQ. 2015. Post-mortem Detection and Pathology of Canine Esophageal Worm (Spirocerca lupi Rudolphi, 1809) Infecting Stray Dogs in Leyte, Philippines: a Case Report. Global veterinaria, 15 (6): 584-587. 10.5829/idosi.gv.2015.15.06.96126
(4) Portugaliza, HP, Romero, SN, Bagot, MA. 2015. Two Potentially Zoonotic Parasites Infecting Philippine Brown Deer (Cervus mariannus Desmarest, 1822) in Leyte Island. Journal of advanced veterinary and animal research, 2(4): 489-493. https://doi.org/10.5455/javar.2015.b110
(3) Fernandez TJ Jr, Portugaliza HP, Braga FB, Vasquez EA, Acabal AD, Divina BP and WP Pedere. 2013. Effective Dose (ED) and Quality Control Studies of the Crude Ethanolic Extract (CEE) Mixture of Makabuhay, Caimito and Makahiya (MCM) as dewormer for goats against Haemonchus contortus. Asian journal of experimental biological science, 4 (1): 28-35.
(2) Fernandez TJ Jr, Divina BP, Bagot MA, Borromeo CE, Molo NG and Portugaliza HP. 2013. Establishment of mean Lethal Dose (LD50) Of Crude Ethanolic Extract (CEE) mixture of Tinospora Rumphii Boerl, Chrysophyllum Cainito Linn. and Mimosa Pudica Linn. Asian journal of experimental biological science, 4(2), 2013: 260-265.
(1) Portugaliza HP and TJ Fernandez Jr. 2012. Growth performance of cobb broilers given varying concentrations of malunggay (Moringa oleifera Lam.) aqueous leaf extract. Online journal of animal and feed research, 2 (6): 465-469.
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