seasonal distribution of rhipicephalus sanguineus ticks (acari: ixodidae) on dogs in an urban area of morelos, mexico.between 1993 and 1995, we examined 1742 dogs at two veterinary clinics in cuernavaca city in mexico for the presence of rhipicephalus sanguineus ticks. the overall tick infestation prevalence was 20% and there were no significant differences (p > 0.05) between different years. the prevalence was somewhat higher in spring, summer and autumn (20% or more) than in winter (13.7%). a positive correlation (p < 0.01) was found between prevalence of ticks and rainfall in spring, summer and autumn, where ...199910356770
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