Israel Advances Second MMRV Vaccine Dose to 18 Months Amid Measles Outbreak

Starting July 1, 2026, Israel's Ministry of Health will administer the second dose of the MMRV vaccine, which protects against measles, mumps, rubella, and varicella, at 18 months instead of at school entry (around age six). This change applies to children born from January 1, 2025 onward and follows extensive public health review and international recommendations. The adjustment aims to provide earlier protection against measles, increase individual immunity in toddlers, and strengthen herd immunity among infants.

Previously, the second MMRV dose was given in first grade, but the updated schedule will deliver it through the national "Tipat Halav" (well-baby clinics) at 18 months, with the first dose given at 12 months. Additionally, the second dose of the hepatitis A vaccine will be moved from age two to first grade to maintain balance in the vaccination schedule.

Measles remains a highly contagious and potentially deadly disease. Since an outbreak began in April 2025, over 3,800 cases have been officially reported, though the Ministry estimates the true number may be around 17,000. Seventeen deaths have been recorded, the latest in March 2026. Dr. Emmanuel Kornitzer, head of rehabilitation at Elin Hospital, highlighted the severe long-term neurological and respiratory complications seen in young children hospitalized with measles, including cognitive impairments and paralysis.

Despite a recent decline in cases, health officials warn of future outbreaks due to declining routine vaccination rates. Kornitzer emphasized that advancing the second dose will better protect younger children who cannot yet be vaccinated and strengthen community immunity. However, he expressed concern that vaccine hesitancy may persist, as those refusing vaccination at age six may also refuse it earlier, perpetuating outbreaks. He stressed the broader community risks posed by unvaccinated children transmitting measles to vulnerable infants.

The Ministry of Health will continue collaborating with healthcare providers to implement the revised vaccination program and increase coverage against infectious diseases in childhood.