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C Conde-González

Publications and source records attributed to C Conde-González.

6 recordsLinked to original sources
PubMed1993

[The resistance and serotyping of 83 strains of Streptococcus pneumoniae isolated from asymptomatic carriers and ill children].

Eight-three isolates of Streptococcus pneumoniae obtained from children hospitalized with several infections in Mexico City and Cuernavaca, and from healthy children attending a day-care center in Cuernavaca, from January to September 1992, were screened for antimicrobial resistance patterns by in vitro susceptibility testing against antimicrobial agents of potential use in the treatment of diseases caused by S. pneumoniae (39 infected patients and 44 from healthy children). 21.6% of strains were resistant to penicillin, 52% of the strains were multiresistant without a commun pattern. Children attending a day-care center had a higher rate of S. pneumoniae strains resistant to one or more antimicrobial than hospitalized children. Serotypes or serogroups 6, 23F, 14 and 19 were most prevalent. There are evidence that strain 23F has an intercontinental link, this strain is associated with disseminated diseases and multiresistance to antimicrobials. The results indicate that changes can occur in the susceptibility of S. pneumoniae and that selective susceptibility testing and epidemiologic studies in hospitalized patients and children in day-care centers are necessary.

Anti-Bacterial Agents↗
PubMedDate not supplied

[Prevalence of antitreponemal antibodies in 3,098 female prostitutes in Mexico City].

This paper describes a serological survey applied to 3098 female commercial sex workers, in order to determine the prevalence of syphilis. The women attend regularly an AIDS orientation center sponsored by CONASIDA in Mexico City. The laboratory tests included the rapid plasma reagin assay (presumptive analysis) and the fluorescent treponemal antibody-absorption technique (confirmatory test). No primary syphilis cases were detected and the prevalence of latent asymptomatic syphilis was 8.2% (255/3098). The sensitivity and specificity of the presumptive test compared to the confirmatory test were 74% and 98% respectively, and the positive predictive value was 77% and the negative predictive value 98%. All seropositive women received the standard penicillin treatment for syphilis. Considerations of importance are offered regarding interpretation and usefulness of this kind of research.

Adolescent↗
PubMedDate not supplied

[Characteristics related to STD/HIV in men working in Mexico City bars where female prostitution takes place].

OBJECTIVE: This research work intended to describe the characteristics and the seroprevalence of some sexually transmitted diseases (STD), in men working in bars where female commercial sex takes place. MATERIAL AND METHODS: The study included an evaluation of 171 males during 1993, who were employed in bars and who were potentially at risk of contact with female commercial sex workers (FCSW). A structured survey was conducted in order to collect information about social, demographic and sexual behavior characteristics. Blood samples were also obtained to test for antibodies against Treponema pallidum (RPR/FTA-ABS), human immunodeficiency virus (VIH) (ELISA, Western blot), Herpes simplex virus type-2 (HSV-2) (Western blot) and the core antigen of hepatitis B virus (HBV) (ELISA). RESULTS: Test results showed low infection rates of HIV, T: pallidum and HBV: 0%, 2.4% and 1.8%, respectively. However, their HSV-2 infection proportion (32.4%) was considered intermediate in comparison to the prevalence of FCSW from bars (55.5%), to that found in heterosexual men (14.6%), and to proportions found in women general population (29.3% and 17.9%). CONCLUSIONS: The men's age and a history of sexual intercourse with FCSW were strong predictors of HSV-2 infection. These findings evidence a relationship between men working in bars and FCSW in terms of STD transmission and show the need for preventive care directed to this group.

Adolescent↗
PubMedDate not supplied

[Seroprevalence of various viruses and sociodemographic characteristics of women seeking HIV screening].

OBJECTIVES: To study the seroprevalence of syphilis, herpes simplex-2, hepatitis B and HIV, and main sociodemographic characteristics and sexual behavior in women seeking testing for human immunodeficiency virus (HIV) in Mexico City. METHODOLOGY: A self-applied questionnaire was used in 454 women; and a blood sample was taken for the detection of markers for syphilis, herpes simplex virus-2 (HSV-2)), antibodies against core and surface antigens for hepatitis B virus (HBV), and ELISA and Western blot for HIV. RESULTS: Seroprevalences for antibodies against T. pallidum, HSV-2, HBV and HIV were 4.6%, 29.3%, 3.5% and 4.0%, respectively. Forty-six percent of the women were 20 to 29 years old; 70% reported complete junior high school or higher education level; 75% were sexually active; 56% reported at least one stable male sexual partner, 17% reported at least one occasional male sexual partner in the last three months, and 60% had had at least one sexual relation in the last three months; of these, only 18% (n = 82) reported the use of a condom as a preventive measure. Almost 30% of the HIV positive women had a history of blood transfusion, while less than 10% of the HIV negative women had received a transfusion. In addition, 10.6% said that one of their sexual partners was infected with HIV or had AIDS. CONCLUSIONS: Risks of HIV/STD transmission for this group of self-selected women were linked to blood transfusion, low education and, most important, the risk from male sexual partners who were HIV seropositive. It is expected that these results will contribute to the improvement and development of strategies for the control and prevention of STD among this population group, as well as the general population in Mexico.

AIDS Serodiagnosis↗