Profile of the cohort of people being treated for HIV infection in the SUS, Brazil, 2015-2018.

Objective: To build an integrated database of individual and service data from the cohort of people who started antiretroviral therapy (ART), from 2015 to 2018, in Brazil.

Methods: Open cohort study that includes people aged 15 years or older who started ART from 2015 to 2018, with follow-up in services of the Brazilian Unified Health System (SUS), and who responded to the 2016/2017 Qualiaids national survey. The source of individual data was the related HIV database, derived from the probabilistic linkage between data from the SUS systems of diagnostic information, medication, tests, and deaths.

Vaccination coverage of triple viral and poliomyelitis in Brazil, 2011-2021: temporal trend and spatial dependency.

Objective: To analyze the coverage of MMR and polio vaccines, the temporal trend and spatial dependence, in children up to one year of age in Brazil, between 2011 and 2021.

Methods: Ecological study with secondary data on vaccination coverage rates, made available by the National Immunization Program Information System. Trend analysis was carried out using the joinpoint method, according to geographic regions, estimating the annual percentage change (APC) and its respective confidence interval (95%CI).

Beyond access to medication: the role of SUS and the characteristics of HIV care in Brazil.

Objective: To estimate the public-private composition of HIV care in Brazil and the organizational profile of the extensive network of public healthcare facilities.

Methods: Data from the Qualiaids-BR Cohort were used, which gathers data from national systems of clinical and laboratory information on people aged 15 years or older with the first dispensation of antiretroviral therapy between 2015-2018, and information from SUS healthcare facilities for clinical-laboratory follow-up of HIV, produced by the Qualiaids survey. The follow-up system was defined by the number of viral load tests requested by any SUS healthcare facility: follow-up in the private system - no record; follow-up at SUS - two or more records; undefined follow-up - one record.

Measles vaccination in Brazil: where have we been and where are we headed?

The re-emergence of vaccine-preventable diseases due to the decline in vaccine coverage (VC) has been documented in several countries. The objective was to analyze the VC, the homogeneity of VC, and measles cases in Brazil from 2011 to 2021, focusing on the period of the COVID-19 pandemic, its temporal trend, space-time distribution, and factors associated with clusters of lower VC. This is an ecological study on measles VC (dose 1), with methods of interrupted time series and evaluation of spatio-temporal disposition, through the sweep test to identify clusters of VC.

Vaccination against poliomyelitis in Brazil from 2011 to 2021: successes, setbacks, and challenges ahead.

The drop in childhood vaccination coverage (VC), including poliomyelitis, has become a health concern. The objective was to analyze the temporal trend of coverage of the three doses of the polio vaccine in the first 12 months of life between 2011 and 2021, in addition to mapping vaccination coverage in Brazil, including the COVID-19 pandemic period. An ecological study was carried out using interrupted time series (STI) techniques and spatial analysis, with data from the National Immunization Program Information System.

Correction: Reasons for nonadherence to vaccination for influenza among older people in Brazil.

[This corrects the article DOI: 10.1371/journal.pone.

Delayed vaccination the children up to 2 years of age.

Objective: To analyze factors associated with vaccination delay in children up to 2 years of age.

Methods: Cross-sectional study with primary data from a probabilistic sample of 388 children born in 2015. The data were described using absolute and relative frequencies.

Impact of the COVID-19 Pandemic on Human Papillomavirus Vaccination in Brazil.

To analyze the number of applied HPV vaccine doses before (from April 2019 to March 2020) and after (from April 2020 to September 2020) social distancing measures in response to the COVID-19 pandemic in states and regions of Brazil. Ecological time-series study, using data from the Brazilian National Immunization Program (PNI). Using the Mann-Whitney test, we evaluated the difference between the median number of applied doses during the periods April 2019 to March 2020 and from April 2020 to September 2020.

Effect of a conditional cash transfer programme on infant up-to-date and timely vaccination.

Background: Conditional cash transfer (CCT) programmes are one of the strategies to increase vaccination coverage among underprivileged families by conditioning cash transfer to the up-to-date immunisation of children. However, there are gaps in knowledge of its impact on vaccination at the recommended age (timely).

Methods: We performed two cross-sectional analyses of secondary data from a retrospective cohort, at the landmark ages of 12 and 24 months, to assess the effect of the Brazilian CCT on the up-to-date and timely vaccination in children born between 2014 and 2016 and resident in the city of Araraquara, São Paulo (Southeast Brazil).

Mortality due to hepatocellular carcinoma associated with hepatitis B and C viruses in the state of São Paulo, Brazil.

Objective: This study aimed to describe and analyze the temporal and spatial distribution of deaths due to hepatocellular carcinoma (HCC) associated with hepatitis B (HBV) and C viruses (HCV) in the state of São Paulo.

Methods: This is an ecological study of HCC deaths associated with HBV and HCV in the state of São Paulo, from 2009 to 2017, with data from the Mortality Information System (SIM). The temporal trend was analyzed by linear regression with Prais-Winsten estimation.

Reasons for nonadherence to vaccination for influenza among older people in Brazil.

This study aimed to estimate the prevalence of non-vaccination and the reasons for nonadherence to the influenza vaccine among older Brazilians according to sociodemographic characteristics. A cross-sectional study was conducted with data from older people (≥ 60 years of age; n = 23,815) who participated in the 2013 National Health Survey. Frequencies of non-vaccination and the main reasons for nonadherence were calculated with respective 95% confidence intervals.

Adverse events following immunization against SARS-CoV-2 (covid-19) in the state of Minas Gerais.

Objective: To analyze adverse events following immunization (AEFI) against SARS-CoV-2 (covid-19) in the state of Minas Gerais (MG), Brazil.

Methods: Epidemiological, descriptive study, with data from e-SUS Notifica (e-SUS Notification) in the state of Minas Gerais from January 20 to March 5, 2021. All suspected cases of AEFI of the covid-19 vaccine in the state were analyzed, totaling 7,305 cases.

Epidemiological profile of a cohort of symptomatic pregnant women with suspected Zika virus infection in the State of São Paulo, Brazil, 2015-2018.

Objective: To describe the epidemiological profile of pregnant women with suspected Zika virus infection, reported on the Center for Strategic Information for Health Surveillance System, in the state of São Paulo, Brazil, its range of abnormalities and/or pregnancy outcomes.

Methods: Descriptive epidemiological study of a cohort of symptomatic pregnant women with suspected Zika virus infection and their pregnancy outcomes, living in the state of São Paulo, reported between 2015-2018.

Results: Of the 2,329 pregnant women studied, 29.

Computerized immunization record agreement in Araraquara, São Paulo, Brazil, 2018.

Objective: To describe agreement between the Juarez System immunization data and information in vaccination record booklets and vaccination coverage in children aged 12 to 24 months.

Methods: This was a descriptive study to assess the vaccination status at 12 and 24 months of age of children born in 2015 and recorded on the Juarez System. The levels of agreement between the Juarez System data and the information in vaccination record booklets were verified.

Factors Associated with the Completeness of the Vaccination Schedule of Children at 12 and 24 Months of Age in a Brazilian Medium-Size Municipality.

Purpose: To analyse the factors associated with the completeness of the vaccination schedule of children at 12 and 24 months of age, in a Brazilian municipality.

Design And Methods: Cross-sectional study conducted in Araraquara-São Paulo with a probabilistic sample of 388 children born in 2015. The completeness of the vaccination schedule at 12 and 24 months of age was considered a dependent variable.

COVID-19 outbreak in Brazil: adherence to national preventive measures and impact on people's lives, an online survey.

Background: The first case of COVID-19 infection was diagnosed in Brazil 26th February 2020. By March 16th, physical distancing and confinement measures were implemented by the Brazilian government. Little is known about how these measures were followed up by the Brazilian people and their impact on daily routine.

Mortality trend due to Hepatitis B and C in the city of São Paulo, 2002-2016.

Objective: To describe mortality due to hepatitis B and C as underlying cause in the municipality of São Paulo, verifying the trend of these rates, and to assess the association of these diseases with others, from 2002 to 2016.

Methods: This is a time series study on mortality due to hepatitis B and C according to sex, with data from the Sistema de Informação de Mortalidade (SIM - Mortality Information Sistem). Prais Winsten regression was used in rate trend analysis.

Pandemic and vaccine coverage: challenges of returning to schools.

Since March 2020, Brazil has faced the pandemic of the coronavirus disease 2019 (Covid-19), which has severely modified the way in which the population lives and uses health services. As such, face-to-face attendance has dropped dramatically, even for child vaccination, due to measures of social distancing to mitigate the transmission of the virus. Several countries have recorded a substantial drop in vaccination coverage in children, especially of those under two years of age.

TB-HIV co-infection: spatial and temporal distribution in the largest Brazilian metropolis.

Objective: To describe the spatial and temporal distribution of TB-HIV co-infection, as well as the profile of the characteristics of the co-infected population in the municipality of São Paulo.

Methods: This is an ecological and time series study with data from the Tuberculosis Patient Control System (TBWeb), including all new cases of tuberculosis co-infected individuals with HIV living in the municipality from 2007 to 2015. Time trends of the disease were analyzed using Prais-Winsten regression.

Vaccine coverage and factors associated with influenza vaccination in the elderly in the city of São Paulo, Brazil: SABE Study 2015.

This study evaluated influenza vaccine coverage among elderly individuals (≥ 60 years) living in the city of São Paulo, Brazil, in 2015, and analyzed associated factors. This was a cross-sectional population-based study of data from the SABE Study (Health, Well-Being, and Aging). The dependent variable was influenza vaccination in the 12 months prior to the interview, and the independent variables were sociodemographic and behavioral characteristics, self-reported health status, and use of health services.