
Argentina's National Administration of Drugs, Foods and Medical Devices (Anmat) permanently revoked the operating licenses of laboratories HLB Pharma and Laboratorios Ramallo, linked to the production of contaminated fentanyl that caused the deaths of at least 111 people between late 2024 and the first half of 2025, in one of the worst health tragedies in the country's recent history.

The death of a 31-year-old anesthesiologist in Buenos Aires on February 20 has triggered a judicial investigation into the systematic theft of fentanyl and propofol from a major private hospital and their recreational use at private gatherings known in medical circles as Propo Fest.

US President Donald Trump signed an executive order on Monday formally designating illicit fentanyl as a Weapon of Mass Destruction (WMD). The move shifts the federal government's approach to the opioid crisis from a strictly public health and law enforcement issue to a national security priority.

This week's issue of Argentina's National Epidemiological Bulletin reported 48 deaths from contaminated fentanyl across 11 of 19 affected healthcare facilities. The contaminated batches, linked to Pharma Group SA and Ramallo SA laboratories, caused fatal invasive infections due to Klebsiella pneumoniae and Ralstonia mannitolilytica bacteria.

The United States on Friday called on dozens of countries to work together to combat synthetic drugs, but China declined an invitation to attend.

President Donald Trump has repeatedly hit out at China for failing to curb the export of illegal fentanyl to the United States. The powerful painkiller is the primary synthetic opioid available in the US, a class of drug that was responsible for almost 32,000 overdose deaths last year.

China on Friday vowed to fight back against US President Donald Trump's abrupt decision to slap 10% tariffs on the remaining US$300 billion in Chinese imports, a move that ended a month-long trade truce.