An internal report from the Hospital Regional Alfredo Mesquita Filho, a state-run public hospital in Macaíba, in the metropolitan area of Natal, capital of Rio Grande do Norte, documented an outbreak of multidrug-resistant bacteria between May and July this year, with 15 patients infected or colonized and eight deaths recorded in the period. The post-incident document, completed on August 11 by the hospital's infection control commission and patient safety unit, classifies the episode as an "outbreak of healthcare-related infection by multidrug-resistant microorganisms", according to reporting by g1 and Folha de S.Paulo.

What the documents confirm: there were 16 records of infection or colonization involving 15 patients, because one patient appears twice on the spreadsheet, from samples collected on different dates. The bacteria identified were Pseudomonas aeruginosa, Acinetobacter baumannii and Klebsiella pneumoniae, species known for resisting multiple antibiotics in hospital settings. The first four cases arrived from other facilities, including patients transferred from Hospital Belarmina Monte, in São Gonçalo do Amarante, and Hospital Lindolfo Gomes Vidal, in Santo Antônio. The first infection acquired inside the hospital itself dates to June 14, and the investigation describes a progression "compatible with the occurrence of cross-transmission" between the ICU and the internal medicine ward, the two units affected. One ICU patient, infected with two of the bacteria, died on July 22. The last death occurred on July 28.

What remains preliminary: the link between the bacteria and the eight deaths. The report speaks of a "severe scenario of infections and colonizations, culminating in the occurrence of eight deaths", but the state health department (Sesap) says the deaths are still under investigation and that it is not possible to conclude they were caused by the microorganisms. In an interview with g1, the state's deputy health secretary, Leidiane Queiroz, said: "I took care to ask the hospital team, and the team did not certify that the deaths were caused by the bacteria". According to her, the presence of these microorganisms can worsen the condition of already frail patients, which by itself does not allow the deaths to be attributed to them.

Failures identified in the report

The document attributes the spread of the outbreak to a combination of structural, operational and care-related failures. Rounds by the infection control commission and the patient safety unit identified "severe operational and procedural fragility" in the ICU and the internal medicine ward. Among the problems listed:

• chronic staff shortage and work overload;
• no dedicated isolation beds;
• damp and mold on ward walls, with damaged furniture shared between patients;
• improper handling of invasive devices such as probes and catheters;
• cleaning failures and sharing of care materials between patients;
• caregivers moving between different beds and incomplete adherence to protective equipment protocols.

Sesap says an action plan was put in place in May, when the first contamination was identified, and that it considers the situation under control. Contacted by g1, the hospital's general director, Patrícia Emannuely, said she would not comment and that the facility follows the department's position.

Two terms in the report are worth separating. According to infectious disease specialist Kleber Luz, interviewed by g1, colonization means the bacteria is present in the body without causing symptoms; infection means it causes clinical changes or altered test results. The distinction matters because not every colonized patient will fall ill, but every colonized patient can transmit the microorganism. For anyone visiting or accompanying patients in any hospital, the measures that reduce transmission are well known: clean your hands when entering and leaving the room, do not touch probes, dressings or catheters, follow staff instructions on gloves and gowns, and avoid moving between beds. Outside the hospital, taking antibiotics only with a prescription and through the full course of treatment helps slow the selection of resistant bacteria.