Seven years ago, the small city of Larkana in Pakistan’s Sindh province became the unlikely epicenter of a medical scandal that shocked the country and drew international attention: 494 children diagnosed with HIV, contracted not through any of the disease’s conventional transmission routes, but through unsafe medical practices at local clinics. This week, continued reporting and advocacy around Pakistan’s pediatric HIV crisis made clear that the Larkana outbreak was not an isolated failure — it was, tragically, a preview of a pattern that has continued to repeat itself across the country in the years since.

The most recent chapter in this recurring crisis centers on Kulsum Bai Valika Hospital in Karachi, Pakistan’s largest city, where hundreds of children have tested positive for HIV in connection with care received through an aid program run by the country’s labour ministry. According to reporting on the outbreak, more than 10,500 people were screened in and around the hospital, with 120 testing positive at that facility alone, while a separate screening drive at another government-run facility in Karachi’s Landhi area identified 10 additional cases. Families affected by the outbreak — many of them low-income factory workers who accessed care through the labour ministry’s aid program — have held public protests at the hospital, demanding accountability and adequate compensation for what they describe as an entirely preventable tragedy.

The pattern connecting these outbreaks, according to medical experts who have studied Pakistan’s recurring pediatric HIV cases, points toward a systemic rather than isolated failure. Fatima Mir, a pediatric infectious disease specialist at Aga Khan University Hospital in Karachi, has described persistent gaps — what she terms “chinks in the armor” — running throughout Pakistan’s broader healthcare infrastructure: chronically poor injection safety practices, unregulated blood donation services in many facilities, and continued reliance on informally trained healthcare providers in areas, particularly rural regions, where more qualified options remain scarce. Parents of affected children at Valika Hospital have specifically pointed to the reuse of syringes and IV needles as the likely mechanism of transmission — an explanation that closely echoes findings from investigations into the original 2019 Larkana outbreak, suggesting that lessons from that earlier crisis were never adequately translated into lasting systemic reform.

The scope of the problem extends well beyond any single hospital or even any single province. A separate outbreak in Taunsa, a district in Punjab province located roughly 600 miles from Karachi, resulted in 331 children being infected with HIV through medical care received between November 2024 and October of the following year — a geographically distinct incident that nonetheless reflects the same underlying pattern of healthcare-associated transmission. Pakistan’s Medical Association warned earlier this year that of 894 total HIV cases recorded in Sindh province during just the first quarter of 2026, 329 involved children — figures the association itself described as merely “the tip of the iceberg,” suggesting the true scope of pediatric HIV transmission through unsafe healthcare practices likely exceeds what formal screening and reporting have so far captured.

Multiple government-ordered inquiries into the Valika Hospital outbreak, launched following the crisis’s emergence last November, have documented specific safety failures, including improper handling of syringes within the facility. In response, the department overseeing the hospital has suspended some staff members, and Sindh’s provincial government has promised affected families financial compensation — though the adequacy and timeliness of that promised compensation remains a point of ongoing concern and advocacy for affected families, some of whom have already lost children to the outbreak, with at least six deaths reported among those infected at Valika Hospital specifically.

Medical experts studying the broader pattern have offered a more complex explanation for why these outbreaks keep recurring across different regions and healthcare facilities. Mir has described what she characterizes as “bridging events” — instances where HIV transmission moves from populations with comparatively higher rates of infection, including injectable drug users, sex workers, transgender individuals, and men who have sex with men, into much lower-risk general populations, including children, through unsafe medical practices that fail to adequately prevent cross-contamination between patients. That framing suggests the recurring pediatric HIV outbreaks reflect not a series of isolated, unrelated incidents, but a persistent structural vulnerability within Pakistan’s healthcare system — one capable of transmitting infection from higher-prevalence populations into the general public whenever basic infection control practices break down.

Three other hospitals in Karachi have separately reported rising numbers of pediatric HIV admissions in recent years, including one facility where such admissions rose from just 10 cases in 2024 to 70 cases the following year — a sevenfold increase that experts say reflects not necessarily a sudden spike in incidents, but likely improved detection and screening efforts uncovering a problem that had previously gone significantly underreported.

For Pakistan’s healthcare system, the recurring nature of these outbreaks — spanning multiple provinces, multiple hospitals, and now nearly a full decade since the initial Larkana crisis first drew international attention — represents a particularly difficult kind of public health failure: not a single catastrophic event, but a chronic, structural vulnerability that continues to claim new victims each time it resurfaces. Addressing it fully, according to the medical experts who have studied the pattern most closely, will require far more than responding to each individual outbreak as it emerges. It will require the kind of sustained, systemic investment in basic infection control infrastructure — safe injection practices, properly regulated blood donation systems, and adequately trained healthcare providers reaching even Pakistan’s most under-resourced regions — that has, so far, proven difficult to achieve at the scale and consistency the crisis clearly demands.