C trachomatis is an important pathogen in the sexually transmitted diseases of registered FSWs in northern Mexico.

Among the sampled population, an HCV prevalence rate of 0.26 percent was found, with the five most common European genotypes causing the infections. Four new subtypes were discovered. Correlation between genotype and risk factors was not apparent, but links with age, sex, and ethnic origin emerged.

We studied haptoglobin polymorphism in Mexican populations with high Indian ancestry living in isolated and urban areas in the state of Durango. Analysis with respect to the HP*1F and HP*1S allelic subtypes by isoelectric focusing showed unusually high HP*1F allele frequencies among urban (0.370) and isolated Mexican Indians (0.383). Comparison with other population studies demonstrated a geographical cline of the HP*1F allele increasing in the same direction of the HP*1 allele, while HP*1S frequency does not show racial differences.

Toxoplasmosis is caused by intracellular parasite Toxoplasma gondii (T. gondii) a zoonotic disease that infects almost all warm-blooded animals, including humans. In addition, T. gondii infection can result in serious and life-threatening consequences for the developing fetus or newborn, including spontaneous abortion, congenital blindness, hydrocephalus, mental retardation, and even death. The aim of this research was to estimate the frequency of seropositivity to IgM and IgG antibodies against T. gondii in pregnant women attended in the health services of the “Lagunera” region of Durango State in the period of January 2018 - October 2018. A cross-sectional study was conducted on 434 pregnant women who used the health services of Durango State. Serum was analyzed for T. gondii infection by detecting IgG and IgM anti-T. gondii antibodies using commercial kits through the immunological technique of ELISA. In addition, a standardized questionnaire was applied to evaluate risk factors and sociodemographic characteristics of the participants. From 434 participants, 4 were detected with IgG antibodies (0.92%) and none of these had a positive result to IgM antibodies (0%). Dry meat consumption (OR = 13.5; 95% CI 0.94 – 192.58; p= 0.055) and other types of meat consumption (OR = 15.61; 95% CI 1.08 – 224.05; p= 0.043) were associated factors to infection. The results showed a lower seroprevalence of antibodies against T. gondii than any other study reported before. In addition, our results indicate the majority of the population studied is at risk of having a primary T. gondii infection.

BackgroundThe epidemiology of the hepatitis B virus (HBV) infection in psychiatric patients from developing countries is poorly studied. Therefore, we sought to determine the frequency of HBV surface antigen (HBsAg) and HBV surface antibody (HBsAb) serological markers of HBV infection in a population of patients of a psychiatric hospital in Durango City, Durango, Mexico, and to determine whether there are any epidemiological characteristics of the subjects associated with the infection.MethodsOut of 150 patients of the psychiatric hospital of Durango City, 99 were examined for HBsAg and HBsAb by AUSZYME MONOCLONAL (Abbott Laboratories, Abbott Park, IL, USA) assay and AUSAB (Abbott Laboratories, Abbott Park, IL, USA) assay, respectively. Epidemiological data from each participant was also obtained. For comparison purposes, 2505 blood donors were examined for HBsAg seropositivity.ResultsOut of the 99 patients studied, twelve showed serological evidence of HBV infection (12.1%); 7 of them (7.1%) were positive for HBsAg, and 5 (5.1%) were positive for HBsAb. Out of the 2505 blood donors, 2 (0.0008%) were HBsAg positive. Seropositivity to HBV markers was associated with an age of 45 years and older (OR = 4.27; 95%CI = 1.02–18.78). Other characteristics as gender, number of hospitalizations, duration of the last hospitalization, and clinical diagnosis were not associated with seropositivity to HBV infection markers. Patients showed a significantly higher HBsAg seropositivity than blood donors (p < 0.0000001)ConclusionHBV was found to be an important infectious agent in the Mexican psychiatric inpatient population studied. Health care strategies for prevention and control of HBV infection in psychiatric hospitals should pay special attention to patients aged forty-five years and older.