Brazil is Facing A COVID-19 Resurgence with Almost 20,000 New Cases in Late February According to WHO Data
Nikhil Prasad Fact checked by:Thailand Medical News Team Mar 14, 2026 1 hour, 36 minutes ago
Medical News: In a stark reminder that SARS-CoV-2 has not vanished, Brazil is witnessing a noticeable rise in COVID-19 cases in 2026, sparking fresh concerns among health officials and the public. Once the hardest-hit nation during the pandemic's peak years, the country now reports a relative surge that stands out in global data, even as absolute numbers remain far below historical highs. This
Medical News report highlights the key indicators driving the renewed attention.
COVID-19 infections are once again rising across Brazil
Sharp Jump in Reported Cases
The World Health Organization's latest comprehensive surveillance, covering the 28 days to February 22, 2026, shows Brazil leading with 19.9k confirmed cases—roughly 19,900—out of a global total of about 48.7k.
https://data.who.int/dashboards/covid19/cases
This figure represents a significant portion of worldwide reports and indicates an increase from the prior 28-day window, where Brazil's tally was lower (prior period around 11k cases in some comparative snapshots, contributing to a notable uptick of over 70% in some analyses). The data underscores Brazil's outsized role in the modest global fluctuations observed.
Underlying Trends and Surveillance Insights
Brazilian health authorities, through Fiocruz and the Ministry of Health, have tracked rises in severe acute respiratory infections (SRAG) linked to COVID-19 in states such as São Paulo, Rio de Janeiro, Goiás, and others.
Weekly epidemiological bulletins (e.g., SE 08 and SE 09 for late February/early March 2026) describe "leve aumento" (slight increases) in notifications, with positivity rates low but showing upward tendencies in select regions. Latest data ending early March also shows a rise in COVID-19 Infections.
https://www.gov.br/saude/pt-br/assuntos/saude-de-a-a-z/c/covid-19/atualizacao-de-casos/informe-se-08-de-2026.pdf
https://www.gov.br/saude/pt-br/assuntos/saude-de-a-a-z/c/covid-19/publicacoes-tecnicas/informes/informe-se-09-de-2026.pdf
https://oglobo.globo.com/saude/noticia/2026/02/26/fiocruz-casos-de-infeccao-respiratoria-grave-estao-em-alta-em-tres-estados-do-brasil-saiba-quais.ghtml
Broader Context and Overall Risk
While the February-March period shows localized upticks, reduced routine testing across the country means figures likely undercount true circulation, relying more on
sentinel and wastewater data.
Local doctors and hospitals are warning that he actual true amounts might be much higher compared to the officially reported figures. Due to lack of genomic sequencing and relevant data, what variants are driving the new surge of COVID-19 in Brazil has not been identified. It is also premature to state if the new COVID-19 cases are more severe as there is not much relevant data to analyze this although most of the 19,900 odd cases were identified in those that had bee hospitalized or were consulting doctors as a result of the symptoms.
This resurgence serves as a caution that variant evolution, and relaxed measures can allow periodic rebounds, emphasizing the need for continued vigilance, precautions, and monitoring to avert escalation.
For the latest COVID-19 News, keep on logging to Thailand
Medical News.
Read Also:
https://www.thailandmedical.news/news/covid-19-infections-rising-in-virginia-and-arizona-sparks-new-concerns-across-united-states
https://www.thailandmedical.news/news/new-zealand-s-covid-19-ninth-wave-drives-rising-hospitalizations
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