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Rats and their helminth parasites: Potential zoonosis threats of land use change in the northeastern sub-watersheds of Mount Makiling, Laguna, Philippines Cover

Rats and their helminth parasites: Potential zoonosis threats of land use change in the northeastern sub-watersheds of Mount Makiling, Laguna, Philippines

Open Access
|Apr 2024

Figures & Tables

Fig. 1.

Spatial distribution of rats (Rattus spp.) and land cover types in Molawin-Dampalit subwatershed, Laguna, Philippines.
Spatial distribution of rats (Rattus spp.) and land cover types in Molawin-Dampalit subwatershed, Laguna, Philippines.

Fig. 2.

Relationship between parasite load and body (A) weight and (B) length of rats (Rattus spp.) in northeastern sub-watersheds of Mount Makiling, Laguna, Philippines.
Relationship between parasite load and body (A) weight and (B) length of rats (Rattus spp.) in northeastern sub-watersheds of Mount Makiling, Laguna, Philippines.

Prevalence of co-infection of helminth parasites in non-native rats (Rattus spp_) collected from various land use types in the northeastern sub-watersheds of Mount Makiling, Laguna, Philippines

––––––Agricultural (% ; n=60)Agroforest (% ; n=60)Residential (% ; n=60)
H. diminuta + H. nana + C. hepatica + T. muris + T. pisiformis0.000.001.70
H. diminuta + H. nana +N. brasiliensis + A. cantonensis1.700.000.00
H. diminuta + H. nana + N. brasiliensis + C. hepatica0.000.005.00
H. diminuta + H. nana + N. brasiliensis + Rictularia sp.1.700.000.00
H. diminuta + H. nana + N. brasiliensis + Strongyloides + C. hepatica + T. muris0.000.001.70
H. diminuta + H. nana + S. fasciolaris + A. cantonensis0.000.001.70
H. diminuta + H. nana + S. fasciolaris + C. hepatica0.000.0010.00
H. diminuta + H. nana + S. fasciolaris + N. brasiliensis1.703.300.00
H. diminuta + H. nana + S. fasciolaris + N. brasiliensis + C. hepatica0.000.008.30
H. diminuta + H. nana + S. fasciolaris + N. brasiliensis + C. hepatica + T. muris + A. cantonensis0.000.001.70
H. diminuta + H. nana + S. fasciolaris + N. brasiliensis + Strongyloides sp. + C. hepatica0.000.001.70
H. diminuta + H. nana + S. fasciolaris + N. brasiliensis + S. ratti + T. muris0.001.700.00
H. diminuta + H. nana + S. fasciolaris + N. brasiliensis + T. muris0.000.001.70
H. diminuta + H. nana + S. ratti + C. hepatica + A. cantonensis0.000.001.70
H. diminuta + S. fasciolaris + C. hepatica + A. cantonensis0.000.001.70
H. diminuta + S. fasciolaris + N. brasiliensis + C. hepatica0.000.003.30
H. diminuta + S. fasciolaris + N. brasiliensis + S. ratti + C. hepatica + T. muris0.000.001.70
H. diminuta + S. fasciolaris + S. ratti + A. cantonensis0.001.700.00
H. nana + N. brasiliensis + C. hepatica + A. cantonensis0.001.700.00
H. nana + N. brasiliensis + S. ratti + A. cantonensis0.001.700.00
H. nana + N. brasiliensis + S. ratti + C. hepatica + T. muris0.000.001.70
H. nana + S. fasciolaris + N. brasiliensis + C. hepatica0.000.003.30
H. nana + S. fasciolaris + N. brasiliensis + S. ratti + C. hepatica + T. pisiformis0.000.001.70
N. brasiliensis + S. ratti + C. hepatica + A. cantonensis1.700.000.00
N. brasiliensis + S. ratti + C. hepatica + T. muris + Rictularia sp.0.000.001.70
S. fasciolaris + N. brasiliensis + C. hepatica + A. cantonensis1.700.000.00
S. fasciolaris + N. brasiliensis + E. ilocanum + A. cantonensis1.700.000.00
S. fasciolaris + N. brasiliensis+ S. ratti + T. muris + A. cantonensis0.001.700.00

Summary of prevalence (%) of helminth parasites in non-native rats (Rattus spp_) collected from various land use types in the northeastern sub-watersheds of Mount Makiling, Laguna, Philippines_

ParameterNo. of SampleNo. of InfectedPrevalence Rate (%) Confidence Interval (CI**)
Habitat p = 0.718

Agricultural605591.7 (84.76–98.66)
Agro-forest605591.7 (84.76–98.66)
Residential605795 (89.49–100)

Species p = 0.264

R. exulans181583 (66.12–100)
R. norvegicus323093.8 (85.36–100)
R. tanezumi13012293.8 (89.72–97.98)

Sex p=0.142

Female1039390.3(84.57–96.01)
Male767496.1 (93.77–100)

Age p=0.013*

Adult13512995.6 (92.08–99.03)
Juvenile453884.4 (73.86–95.03)

Season p=0.400

Dry1099990.82 (85.41–96.24)
Wet716895.77 (91.1–100)

Prevalence (%) of helminth parasites per species of non-native rats (Rattus spp_) collected from various land use types in the northeastern sub-watersheds of Mount Makiling, Laguna, Philippines_

ParasitesR. exulans (n=18)R. tanezumi (n = 130)R. norvegicus (n = 32)Overall (N = 180)*p-value
H. diminuta27.7837.695038.890.00
H. nana27.7831.3171.8836.890.00
S. fasciolaris38.8953.0850.0051.110.44
N. brasiliensis50.0051.5446.8850.560.66
S. ratti0.008.4625.0010.560.08
E. ilocanum11.114.620.004.440.00
T. muris0.003.8525.007.220.00
A. cantonensis44.4416.929.3818.330.00
Rictularia sp.0.000.773.131.110.60
T. pisiformis0.000.776.251.670.05
C. hepatica2.239.1412.4623.880.02
DOI: https://doi.org/10.2478/helm-2024-0005 | Journal eISSN: 1336-9083 | Journal ISSN: 0440-6605
Language: English
Page range: 30 - 39
Submitted on: Sep 26, 2023
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Accepted on: Feb 2, 2024
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Published on: Apr 23, 2024
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open

© 2024 V. G. V. Paller, R. N. Fornesa, D. A. P. Fernandez, L. A. Estaño, published by Slovak Academy of Sciences, Institute of Parasitology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.