Résumé
Abstract INTRODUCTION: Triatomine bugs are vectors of Trypanosoma cruzi, the etiological agent of Chagas disease. METHODS: Triatomine bugs were collected and identified following established protocols. In addition, infection with T. cruzi was detected by microscopic and molecular analysis. RESULTS: We captured an adult male specimen of the Eratyrus cuspidatus species that has not been reported in the state of Campeche. CONCLUSIONS: This finding provides new information on the distribution of E. cuspidatus in Mexico. However, more studies are needed to determine their epidemiological significance.
Sujets)
Animaux , Mâle , Triatominae/anatomie et histologie , Triatominae/classification , Vecteurs insectes/anatomie et histologie , Vecteurs insectes/classification , Maladie de Chagas/transmission , MexiqueRésumé
Abstract Murine typhus is a flea-borne disease caused by Rickettsia typhi, which was first detected in Mexico in 1927. It was not until 1996 that the first systematized study involving this pathogen was conducted in two coastal states of Mexico. We now report the first confirmed case of murine typhus in the state of Campeche, which occurred in a male patient who exhibited fever, thrombocytopenia, hyperbilirubinemia, and a rash. Furthermore, the patient reported having had previous contact with Rickettsia reservoirs.
Sujets)
Humains , Mâle , Femelle , Adulte , Typhus murin/diagnostic , Rickettsia typhi , Thrombopénie , Ceftriaxone/usage thérapeutique , Typhus murin/traitement médicamenteux , Typhus murin/sang , Réaction de polymérisation en chaîne , Doxycycline/usage thérapeutique , Exanthème , Fièvre , MexiqueRésumé
Resumen Entre las enfermedades infecciosas febriles se encuentran: dengue, leptospirosis, rickettsiosis y salmonelosis, entre otras. El objetivo de este estudio fue detectar la presencia de anticuerpos IgM a dengue y Leptospira en pacientes febriles. La seropositividad para IgM frente al dengue fue 34%; 26,3% en mujeres y 7,6% en varones, sin diferencias significativas (p = 0,181). La seropositividad para los anticuerpos IgM a Leptospira fue 3,2%; encontrándose sólo en mujeres. La serología positiva para leptospirosis y dengue fue 1%. Los serovares detectados fueron Pomona y Canicola por la técnica de microaglutinación. Se pudo identificar la presencia insospechada de leptospirosis y dengue en meses atípicos para este último, hecho importante para considerar el estudio de serología en el diagnóstico diferencial de enfermedades febriles.
Among the infectious diseases characterized by a febrile picture are: dengue, leptospirosis, rickettsiosis and salmonellosis, among others. The objective of this study was to identify IgM antibodies against dengue and Leptospira in febrile patientes. The seropositivity for IgM antibodies to dengue was 34%; 26.3% for women and 7.6% for men, without differences significant (p = 0.181). The seropositivity for IgM antibodies to Leptospira was 3.2%, being found only in women. Positive serology for both dengue and Leptospira was 1%. The serovars detected were Pomona and Canicola by the microagglutination technique. It was possible to identify the unsuspected presence of leptospirosis and dengue in atypical months for the latter, an important fact to consider the study of serology in the differential diagnosis of febrile diseases.
Sujets)
Humains , Mâle , Femelle , Enfant d'âge préscolaire , Enfant , Adolescent , Adulte , Adulte d'âge moyen , Sujet âgé , Sujet âgé de 80 ans ou plus , Jeune adulte , Immunoglobuline M/sang , Dengue/épidémiologie , Leptospirose/épidémiologie , Anticorps antibactériens/sang , Études séroépidémiologiques , Prévalence , Études transversales , Dengue/diagnostic , Diagnostic différentiel , Hôpitaux généraux , Leptospirose/diagnostic , Mexique/épidémiologieRésumé
Leptospira reactivity in stray and household dogs in Campeche as well as associated risk factors to the seropositivity in household dogs have been herein determined. The survey included 323 dogs, 142 of which were stray dogs and 181 household dogs. Nine Leptospira interrogans serovars were tested by the microagglutination test. Reactivity was 21.3
corresponded to household dogs and 26.7
), and Leptospira Icterohaemorrhagiae (16.12
) were the most common serovars reacting against the serum of household animals, while Leptospira Canicola (15.78
), and Leptospira Pomona (7.89
) were those reacting in stray dogs. Results showed that all dogs have been in contact with different Leptospira serovars and outdoor exposure is the main infection risk factor.