Notes from the Field: Nontuberculous Mycobacteria Infections After Cosmetic Surgery Procedures in Mexico — United States, April–September 2025

Investigation and Outcomes

Nontuberculous mycobacteria (NTM) infections, including those caused by Mycobacterium abscessus, are associated with outbreaks in health care settings, including those providing cosmetic surgery (1). NTM infections can be difficult to diagnose; routine bacterial cultures are often inadequate, and acid-fast bacilli cultures are typically needed. M. abscessus infections can be severe and affect multiple organ systems, even among immunocompetent persons (2,3). On December 22, 2025, the County of San Diego Health and Human Services Agency was notified of an M. abscessus infection in a resident who had traveled outside the United States for facelift surgery (i.e., a medical tourist) in Zapopan, Jalisco, Mexico, in September 2025 (patient A in California). Beginning eight days after surgery, from October to December 2025, patient A developed multiple seromas (i.e. fluid-filled pockets) on the face and neck, requiring antimicrobials and four drainage procedures. Patient A later received a diagnosis of M. abscessus infection.

Patient A reported communicating through social media with other U.S. residents who also had experienced infections after facelift surgeries performed by the same surgeon (surgeon X) at the same hospital (facility X). In February 2026, CDC and Mexico’s Ministry of Health launched a binational investigation to identify additional cases and potential infection sources. This activity was reviewed by CDC, deemed not research, and conducted consistent with applicable federal law and CDC policy.*

A confirmed case of cosmetic surgery–associated NTM was defined as laboratory evidence of a rapidly growing^† NTM in a patient who underwent cosmetic surgery by surgeon X in facility X during January 1, 2025–July 1, 2026. CDC coordinated with administrators of the social media network to encourage case reporting. A second California resident (patient B) and an Illinois resident (patient C) were part of this social media network and reported NTM infections after having had surgeries by surgeon X in July 2025. Whole genome sequencing (WGS) performed by CDC’s Clinical and Environmental Microbiology Branch confirmed the isolates from patients A, B, and C as M. abscessus sequence type (ST) 56 with one or two high-quality^§ single nucleotide variant differences across a 99.64% sequenced core genome, indicating a likely common source. Through the social media network, CDC was notified of two additional persons who met the case definition: a Texas resident (patient D) and a Florida resident (patient E). Patient D had developed a Mycobacterium fortuitum infection after facelift surgery by surgeon X in April 2025. Patient E had developed an M. abscessus infection after facelift surgery by surgeon X in September 2025. Across the cluster, median interval from procedure date to symptom onset was 33 days (range = 4–112 days); median interval from procedure date to culture collection was 76 days (range = 47–116 days) (Figure). All patients sought treatment in the United States; no deaths occurred.  Some patients in the cluster are still receiving treatment (i.e., medications, corrective surgeries for scarring and disfigurement, and drainage procedures), whereas others have completed treatment. The isolate from patient E was confirmed as ST42 by WGS, and the isolate from patient D was a different species of NTM (M. fortuitum), suggesting these infections were not part of the same genetic cluster (ST56) as that of patients A, B, and C. This finding does not rule out the possibility of a common infection source in facility X or the health care environment (e.g., a water source).

CDC and Mexico’s Ministry of Health continue to collaborate to identify additional cases and potential outbreak sources. During inspection of facility X in February 2026, lapses in surgical instrument sterilization were identified, resulting in closure of the operating area and confiscation of surgical instruments from surgeon X. CDC and the Mexico Ministry of Health have requested a list of U.S. residents who received care at facility X during April–September 2025, and the investigation is ongoing. As of October 19, 2026, five confirmed cosmetic surgery–associated NTM cases linked to surgeon X at facility X had been identified among U.S. residents across four U.S. states.

Preliminary Conclusions and Actions

Providers should consider NTM infection among patients with postsurgical infections, especially after cosmetic procedures (1,4). Medical tourists traveling for medical care should be aware that facility accreditation and health care professional certification standards might vary outside the United States (5). CDC has developed the Medical Tourism Surveillance System (MTSS) to track adverse health outcomes linked to medical tourism. Although extrapulmonary NTM infections are not nationally notifiable, using MTSS could streamline reporting to CDC and help identify epidemiologically related infections that might indicate an outbreak. Improving awareness about infections associated with medical tourism, timely reporting to local health jurisdictions, and coordinated local, national, and international response, are central to protecting the health of U.S. travelers.