Varicela en un hombre de 33 años / Varicella in one man of 33 years

Resumen Presentamos el caso de un hombre campesino de 33 años de edad, inmunocompetente, quien presentó cuadro clínico agudo con máculas, pápulas y vesículas simultáneas, generalizadas, de 10 dias de evolución, con fiebre y conjuntivitis. Se sospechó varicela, la cual se confirmó con frotis directo y biopsia de piel con inmunohistoquímica. El paciente mejoró y curó sin complicaciones y sin tratamiento antiviral. Es un caso interesante al tratarse de un hombre adulto, sin inmuno supresión ni enfermedad de base predisponente, con manifestaciones floridas e importante compromiso cutáneo, con evolución satisfactoria. Revisamos aspectos generales de la varicela, de su incidencia en Colombia y de los programas de vacunación.

Abstract We describe a case of varicella in one immunocompetent man of 33 years, who consulted by cutaneous lesions consistent in maculopapular and vesicles generali zed after 10 days of evolution, accompanied by fever and conjunctivitis. Diagnosis of varicella was confirmed by direct stain and biopsy with immunohistochemistry analysis. The patient improved without antiviral treatment and no complications. We consider this caes of interest because its inusual presentation in one man without immunodeficiency nor subjacent disease. We reviewed the situation of varicella in Colombia and of the vaccination programs.

Correlación entre casos de varicela y búsquedas en Google en Perú

Resumen Con el objetivo de determinar la correlación entre los casos de varicela notificados en Perú y las búsquedas sobre varicela realizadas en Google a nivel nacional y por regiones se realizaron análisis de correlación de Spearman para las semanas epidemiológicas del 2016 al 2019, así como antes y después de la introducción de la vacuna para varicela en el Perú. A nivel nacional, se encontró una alta correlación antes del inicio de la vacunación (Rho 0,778, p = 0,001) y moderada durante el periodo de vacunación (Rho 0,441, p = 0,001). Algunas regiones tuvieron una correlación baja o muy baja y dejaron de ser estadísticamente significativas luego de la introducción de la vacuna en el Perú. Además, el cambio en la estacionalidad de la varicela durante el periodo de vacunación también tuvo un impacto en las búsquedas que realiza la población en Google.

Abstract In order to determine if there is a correlation between chickenpox cases reported in Peru and the chickenpox searches carried out on Google at national level and by regions, Spearman's correlation analyzes were carried out for the epidemiological weeks from 2016 to 2019, as well as before and after the introduction of the chickenpox vaccine in Peru. At the national level, a high correlation was found before the start of vaccination (Rho 0.778, p = 0.001) and moderate during the vaccination period (Rho 0.441, p = 0.001), some regions had a low or very low correlation and stopped to be statistically significant after the introduction of the vaccine in Peru. In addition, the change in the seasonality of chickenpox during the vaccination period also had an impact on the searches carried out by the population on Google.

[Varicella vaccine effectiveness in schoolchildren in outbreaks in a semi-urban area]. / Efectividad de la vacuna de la varicela en el contexto de brotes escolares en una zona semiurbana.

OBJECTIVE: To estimate the effectiveness of the varicella vaccine in school outbreaks during the academic year 2009-2010. MATERIAL AND METHOD: Retrospective cohort study in public day-care centers and/or schools in an area in the region of Murcia. Spain. The participants were all children of 1 to 12 years who were in the same classroom where there was an outbreak of varicella. The main measurements were the sociodemographic, clinical and vaccination data, as well as variables related to varicella disease obtained through a questionnaire self-completed by parents, and from the computerized regional immunization registry (VACUSAN). RESULTS: A total of 51 varicella outbreaks were detected, with a median of 3 cases per outbreak at both educational levels. The overall vaccination coverage was 10.7% (95% CI 8.63 to 13.18), always being higher in Spanish schoolchildren versus foreign (OR: 21.21, 95% CI: 2.92 to 153.92, P<.001). Discrepancies were found between the vaccine questionnaire data and vaccination program (kappa=0.50, 95% CI: 0.43 to 0.58, P<.001). According to VACUSAN, the overall attack rate was 59.7 (95% CI: 55.82 to 63.43) in unvaccinated and 6.5 (95% CI: 2.54 to 15.45) in vaccinated children. An overall effectiveness of 89.1% (95% CI: 74.55 to 95.35) and 100% was obtained for 1 and 2 doses of vaccine, respectively. CONCLUSIONS: There is a high effectiveness of varicella vaccine, emphasizing that the administration of two doses of vaccine produces an adequate and optimal protection against varicella disease. A discrepancy was found between the information provided by parents and official records. Finally, there was a lower vaccination coverage in the immigrant community.