May 2, 2026 – Johannesburg: South Africa's public health authorities are sounding the alarm after a dramatic spike in measles cases this year, raising concerns about vaccination gaps and community transmission.
The latest data from the country's National Institute for Communicable Diseases (NICD), released late last week, reveals a concerning trend. From the final week of December 2025 through late April 2026, South Africa recorded 1,352 laboratory-confirmed measles cases.
This figure represents a more than sevenfold increase compared to the same period last year, when only 182 cases were confirmed.
“This is indicative of continuing measles transmission within communities and possibly an immunity gap in older age groups,” the NICD stated in its report. The institute has called for heightened surveillance and a reinvigoration of vaccination efforts nationwide.
The outbreak is geographically widespread, with the Western Cape province registering the highest number of new infections in the most recent reporting week. While measles primarily affects children, the current data shows a significant shift.
Children aged one to 14 years account for approximately 68% of the infections. However, a notable and concerning 19.7% of cases are occurring in individuals over the age of 15, prompting health officials to flag this change in the disease's epidemiology.
“This shift warrants further investigation to inform and improve public health interventions,” the NICD emphasized.
Measles remains endemic in South Africa, with cases typically increasing during the autumn season. The resurgence is strongly linked to areas with suboptimal vaccination coverage, where children are either unvaccinated or have not received the full recommended course of immunizations.
The sharp rise serves as a stark reminder of the critical importance of maintaining high vaccination rates to achieve herd immunity and prevent the resurgence of preventable diseases.
Reference(s):
cgtn.com
