# Brazil blood shortage alerts expand to Minas Gerais > Live situation record from CLSTR: https://clstr.news/situations/brazil-blood-shortage-alerts > Updated: 2026-08-18T21:15:01.000Z. Sources: 7. Developments: 3. In late July, the Municipal Health Secretariat of Corumbá warned of a sharp rise in respiratory viruses and reported an acute shortage of O‑negative blood in Barra do Garças, urging immediate community donations. Within two weeks, the shortage issue expanded beyond the initial locality. By early August, blood banks in Dourados (Mato Grosso do Sul) and the state‑wide network in Mato Grosso announced critically low supplies of both O‑positive and O‑negative blood, as well as low B‑negative stocks. The facilities appealed for donors across a broader region, extending collection hours and adding multiple sites to prevent cancellations of surgeries and other emergency procedures. The situation illustrates a widening public‑health challenge in Brazil, moving from a single‑city alert to a multi‑state emergency response focused on blood donation. By August 4, the Hemosul blood bank in Dourados reported having only four units of O+ blood, representing approximately 8% of the level considered safe for the city and ten surrounding municipalities. Officials warned that the shortage could force the postponement or cancellation of surgeries, including cardiac procedures. Simultaneously, MT Hemocentro in Mato Grosso warned of critically low O-negative and low B-negative stocks, extending Saturday hours and utilizing 15 collection points across the state to maintain hospital operations. By mid-August, the crisis in Mato Grosso do Sul persisted, with the Hemosul network reporting that O+ stocks—the most common type in the Brazilian population—had fallen to approximately 20% of the ideal volume. Coordinator Marina Sawada Torres emphasized the need for immediate community mobilization to ensure continued emergency and inpatient care. By August 18, the shortage expanded into Minas Gerais. The Hemominas Regional Hemocenter in Juiz de Fora reported that available blood volumes had fallen below 40% of the ideal level, specifically citing concerns regarding O negative, O positive, and A negative blood types. ## Claims - Blood stocks at the Juiz de Fora Hemominas are below 40% of the ideal level. (single source) - Blood types O+, O-, A+, and A- are classified as being in a critical state. (single source) - MT Hemocentro has issued an alert for B-, O-, and O+ blood types. (single source) ## Timeline ### 2026-08-18: Brazil blood banks issue alerts over critical supply shortages Blood banks in Minas Gerais and Mato Grosso, Brazil, have issued urgent alerts due to critical shortages of several blood types, including O negative and O positive, calling for immediate donations. 4 sources. https://clstr.news/cluster/brazil-blood-banks-issue-alerts-over-critical-supply-shortages ### 2026-08-04: Brazilian blood banks in Dourados and Mato Grosso urge urgent O+ and O‑negative donations Blood banks in Dourados (MS) and Mato Grosso report critical O+ and O‑negative shortages, urging donors aged 16‑69 to help keep hospitals supplied. 3 sources. https://clstr.news/cluster/brazilian-blood-banks-in-dourados-and-mato-grosso-urge-urgent-o-and-onegative-donations ### 2026-07-24: Brazil health alerts: rising respiratory viruses in Corumbá and O‑negative blood shortage in Barra do Garças Brazilian health officials warn of a surge in respiratory viruses in Corumbá and a critical O‑negative blood shortage in Barra do Garças, urging vaccinations and donor donations. 4 sources. https://clstr.news/cluster/brazil-health-alerts-rising-respiratory-viruses-in-corumb-and-onegative-blood-shortage-in-barra-do-g --- Cite as: Brazil blood shortage alerts expand to Minas Gerais. CLSTR, https://clstr.news/situations/brazil-blood-shortage-alerts