Coverage Comparison
W4 (local)85.8%
England Average88.9%
WHO Herd Immunity Target95%
Measles outbreak risk. Coverage is 85.8% vs 88.9% national average. 9.2 percentage points below the WHO target. To reach 95%, approximately 10 more children in this district would need to be vaccinated.
Key Figures
85.8%
Local Coverage
15
Unvaccinated Children
106
Total Eligible
8
GP Practices
Outbreak Risk Estimate
Rt 2.1
Effective reproduction number
High RiskRt > 1 — outbreak can spread
Measles has a basic reproduction number (R0) of ~15 — one of the most infectious diseases known. At 85.8% coverage, each measles case in W4 could infect approximately 2.1 others. An Rt above 1 means an outbreak can sustain itself.
GP Practices in W4
| Practice | Postcode | Children | Coverage |
|---|---|---|---|
| ACTON LANE MEDICAL CENTRE | W4 5DG | 17 | 64.7% |
| WEST4 GPS | W4 1RX | 9 | 77.8% |
| CHISWICK MEDICAL PRACTICE | W4 3ET | 40 | 85% |
| CHISWICK HEALTH PRACTICE | W4 1RX | 16 | 93.8% |
| THE BEDFORD PARK SURGERY | W4 5LH | 7 | 100% |
| GLEBE STREET SURGERY | W4 2BD | 7 | 100% |
| GROVE PARK TERRACE SURGERY | W4 3JL | 10 | 100% |
| HOLLY ROAD MEDICAL CENTRE | W4 1NU | <5 | Suppressed |
1 practice(s) with fewer than 5 eligible children have been suppressed per NHS guidelines.
MMR Vaccine Facts
The MMR vaccine is safe
The MMR vaccine has been used for over 50 years with an excellent safety record. The 1998 Wakefield study claiming a link to autism was fraudulent and has been fully retracted.
Measles is dangerous
1 in 5 unvaccinated children who contract measles require hospitalisation. Complications include pneumonia, brain inflammation (encephalitis), and death.
Herd immunity protects everyone
95% coverage is needed to protect those who cannot be vaccinated — including newborns and immunocompromised individuals.
Need to Get Vaccinated?
Contact your GP practice to book an MMR vaccination appointment for your child.
Find Your GP →Area Details
DistrictW4
RegionLondon
ICBNorth West London
Data QuarterQ3 2024–25
GP Practices8
Eligible Children106
Vaccinated91
Unvaccinated15
Share This Area
Help people in W4 find this data — share with local groups, councillors, or your GP.