In the face of the coronavirus disease 2019 (COVID-19) pandemic, the entire world is concerned with achieving desired herd immunity to overcome the current health crisis. Estimating the efficacy that could be attained in a population by combining vaccines of different brands or technologies would be a valuable asset for public health decision-makers in the present pandemic and in similar future scenarios. This article provides a mathematical formula to estimate probable efficacy against COVID-19 when administering two vaccines in a specific population.

Objective

To describe the epidemiological behavior of leprosy in several Latin American countries during 2011-2020, based on World Health Organization (WHO) indicators.

Objective

To evaluate, using semiparametric methodologies of survival analysis, the relationship between covariates and time to death of patients with breast cancer, as well as the determination discriminatory power in the conditional inference tree of patients who had cancer.

Objective

To describe the time trends of mortality attributable to malnutrition in Colombia in the period 2005-2019, overall and disaggregated by age and sex.

Corrigendum to Intimate partner violence in the Americas: a systematic review and reanalysis of national prevalence estimates. The Pan American Journal of Public Health calls readers' attention to an error in the following article, pointed out by the authors: Bott S, Guedes A, Ruiz-Celis AP, Mendoza JA. La violencia por parte de la pareja íntima en las Américas: una revisión sistemática y reanálisis de las estimaciones nacionales de prevalencia. Rev Panam Salud Publica. 2021;45:e34.

Objective

To assess the comprehensiveness of primary healthcare (PHC) in different countries.

Method

PubMed, Virtual Health Library (BVS), and Scopus were systematically searched. Observational studies published from 2017 to 2019, using the Adult Primary Care Assessment Tool (PCAT) to assess comprehensiveness were included without limits regarding the language of publication or country. The quality of studies was assessed using the Newcastle-Ottawa scale (NOS).