Molecular detection of Rickettsia spp. And Coxiella burnetii in cattle, water buffalo, and Rhipicephalus (Boophilus) microplus ticks in Luzon Island of the Philippines

Issue Date

4-2020

Abstract

Rickettsia and Coxiella burnetii are zoonotic, tick-borne pathogens that can cause febrile illnesses with or without other symptoms in humans, but may cause subclinical infections in animals. There are only a few reports on the occurrence of these pathogens in cattle and water buffalo in Southeast Asia, including the Philippines. In this study, molecular detection of Rickettsia and C. burnetii in the blood and in the Rhipicephalus (Boophilus) microplus ticks of cattle and water buffalo from five provinces in Luzon Island of the Philippines was done. A total of 620 blood samples of cattle and water buffalo and 206 tick samples were collected and subjected to DNA extraction. After successful amplification of control genes, nested PCR was performed to detect gltA of Rickettsia and com1 of C. burnetii. No samples were positive for Rickettsia, while 10 (cattle = 7, water buffaloes = 3), or 1.6% of blood, and five, or 1.8% of tick samples, were C. burnetii-positive. Sequence analysis of the positive amplicons showed 99–100% similarity to reported C. burnetii isolates. This molecular evidence on the occurrence of C. burnetii in Philippine ruminants and cattle ticks and its zoonotic nature should prompt further investigation and surveillance to facilitate its effective control.

Source or Periodical Title

Tropical Medicine and Infectious Disease

Volume

5

Issue

2

Page

1-11

Document Type

Article

Physical Description

map; table; references

Language

English

Subject

Coxiella burnetii, Q fever, Rickettsia, Rickettsiosis, Tick-borne pathogens

Identifier

DOI:10.3390/tropicalmed5020054.

Digital Copy

yes

En – AGROVOC descriptors

COXIELLA BURNETII; Q FEVER; RICKETTSIA; RICKETTSIOSIS; TICK-BORNE PATHOGENS

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