Objective: to describe the evolution of COVID-19 in Brazil up until epidemiological week 20 of 2020. Methods: this is an ecological study based on data and official documents from the Brazilian Ministry of Health and international organizations; comparisons were made between Brazil and other countries and incidence and mortality rates were calculated. Results: by the end of epidemiological week 20, 233,142 cases, and 15,633 deaths had been confirmed for Brazil as a whole and 3,240 (58.2%) of the country's municipalities had reported at least one case; Brazil was at an earlier phase of the pandemic when compared to other countries, except Russia and Turkey, regarding cumulative cases, and except Canada regarding cumulative deaths; the highest rates were found in Brazil's Northern Region states, where Amazonas state had the highest incidence rates(4,474.6/1,000,000) and mortality rates (331.8/1,000,000). Conclusion: Brazil is one of the countries with the highest number of confirmed cases and deaths, with marked regional differences.

Objective: to describe the spatial distribution of the first confirmed COVID-19 cases and deaths in Rio de Janeiro. Methods: this was an ecological study of confirmed SARS-CoV-2 cases and deaths between March 6 th and April 10 th , 2020. Incidence, mortality, lethality, excess risk and global and local Moran rates were calculated. Results: 1,808 confirmed cases and 92 confirmed deaths were recorded. The COVID-19 incidence rate was 26.8/100,000 inhab., the mortality rate was 1.36/100,000 inhab. and lethality rate 5%. The incidence rate in eight neighborhoods was 4-12 times higher than the overall rate for the municipality: Joá, in the city's Western Zone; Cosme Velho, Gávea, Ipanema, Jardim Botânico, Lagoa, Leblon and São Conrado, in its Southern Zone. Conclusion: high risk of COVID-19 infection and deaths was found in neighborhoods in the Southern Zone of the city of Rio de Janeiro. Neighborhoods in the Northern Zone of the city also stand out in relation to high risk of death.

Objetivo. Caracterizar as fake news sobre COVID-19 que circularam no Brasil de janeiro a junho de 2020. Métodos. As fake news registradas até 30 de junho de 2020 em dois sites (G1, da corporação Globo, e Ministério da Saúde) foram coletadas e categorizadas de acordo com o seu conteúdo. Para cada notícia enganosa, foram extraídos os seguintes dados: data de circulação, título, canal de divulgação (por exemplo, WhatsApp), formato da divulgação (por exemplo, texto, foto ou vídeo) e portal de registro. Os termos encontrados nos títulos das notícias falsas foram analisados no Google Trends para determinar se houve aumento de buscas no Google com utilização desses termos após a disseminação de uma determinada notícia enganosa. Foram também identificadas as macrorregiões brasileiras com maior porcentagem de aumento nas buscas utilizando os termos analisados. Resultados. Foram identificadas 329 fake news relacionadas à pandemia de COVID-19 nos sites estudados (253 no G1 e 76 no Ministério da Saúde). As fake news foram disseminadas principalmente através de WhatsApp e Facebook. As categorias temáticas mais frequentes foram: política (por exemplo, governantes falsificando a vacinação contra a COVID-19, com 20,1%), epidemiologia e estatística (proporção dos casos e óbitos, 19,5%) e prevenção (16,1%). Conforme o Google Trends, houve um aumento de 34,3% nas buscas que utilizavam termos presentes nas fake news. O maior aumento nas buscas ocorreu no Sudeste (45,1%) e Nordeste (27,8%). Conclusões. As fake news divulgadas durante os primeiros 6 meses da pandemia de COVID-19 no Brasil se caracterizaram por conteúdos de posicionamento político e desinformação sobre número de casos e óbitos e medidas de prevenção e de tratamento. Os principais veículos de divulgação foram o WhatsApp e o Facebook, com utilização de mensagens, imagens e vídeos, tendo maior alcance nas regiões Sudeste e Nordeste do país.

SETTING: Two consecutive trials were conducted to evaluate the effectiveness of a public health approach to identify and correct problems in the care cascade for household contacts (HHCs) of TB patients in three Brazilian high TB incidence cities.METHODS: In the first trial, 12 clinics underwent standardised evaluation using questionnaires administered to TB patients, HHCs and healthcare workers, and analysis of the cascade of latent TB care among HHCs. Six clinics were then randomised to receive interventions to strengthen management of latent TB infection (LTBI), including in-service training provided by nurses, work process organisation and additional clinic-specific solutions. In the second trial, a similar but streamlined evaluation was conducted in two clinics, who then received initial and subsequent intensive in-service training provided by a physician.RESULTS: In the evaluation phase of both trials, many HHCs were identified, but few started LTBI treatment. After the intervention, the number of HHCs initiating treatment per 100 active TB patients increased by 10 (95%CI – 11 to 30) in the first trial, and by 44 (95%CI 26 to 61) in the second trial.DISCUSSION: A public health approach with standardised evaluation, local decisions for improvements, followed by intensive initial and in-service training appears promising for improved LTBI management.