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Chad P McHugh

Publications and source records attributed to Chad P McHugh.

4 recordsLinked to original sources
PubMed2003

Temporal and spatial distribution of Leishmania mexicana infections in a population of Neotoma micropus.

A 19-month mark-release-recapture study of Neotoma micropus with sequential screening for Leishmania mexicana was conducted in Bexar County, Texas, USA. The overall prevalence rate was 14.7% and the seasonal prevalence rates ranged from 3.8 to 26.7%. Nine incident cases were detected, giving an incidence rate of 15.5/100 rats/year. Follow-up of 101 individuals captured two or more times ranged from 14 to 462 days. Persistence of L. mexicana infections averaged 190 days and ranged from 104 to 379 days. Data on dispersal, density, dispersion, and weight are presented, and the role of N. micropus as a reservoir host for L. mexicana is discussed.

Animals↗
PubMed2003

Short report: a disseminated infection of Leishmania mexicana in an eastern woodrat, Neotoma floridana, collected in Texas.

An eastern woodrat (Neotoma floridana) collected in January 2001 near Bedias, Grimes County, Texas, had extensive lesions of both ears and swollen feet. Impression smears and histologic sections demonstrated the presence of Leishmania in both ears and the one foot that was screened. Polymerase chain reaction screening using species-specific primers detected parasites in both ears and all four feet and indicated the parasites were L. mexicana. The detection of L. mexicana in N. floridana represents a new host record in a new ecologic region and may help explain a human infection acquired outside the previously-known range of the disease. Given the geographic distribution of N. floridana and the two other species of Neotoma found naturally infected, enzootic foci of Leishmania could be present over much of the southern United States.

Animals↗