2023-07-16-世界卫生组织-Immunization_Sri_Lanka_2023_country_profile_17页_359kb

Sri Lanka Immunization Coverage Estimates (WHO & UNICEF - July 1, 2023)

Introduction

• UNICEF and WHO estimate national immunization coverage based on reported data, surveys, administrative records, and population denominators, acknowledging the variability and potential limitations in data quality.

Methodology

• Estimates are country-specific and developed individually for each nation.
• Grade of Confidence (GoC) measures the empirical support for an estimate; categories include:
  • •••: High confidence (reported data, independent denominator, supporting survey within 2 years)
  • ••: Medium confidence (at least one data source)
  • •: Low confidence (no direct supporting data)
• Disclaimer: Estimates should be used cautiously and assessed by their purpose

Sri Lanka Immunization Coverage (2011–2022)

BCG (Birth Dose)

• Consistently 99–100% across years
• GoC: ••• (high confidence)

DTP1 & DTP3 (Diphtheria, Tetanus, Pertussis)

• Consistently 99–100% across years
• GoC: ••• (high confidence for many years), •• (medium for some)

MCV1 & MCV2 (Measles, Rubella Containing)

• Consistently 99–100% across years
• For RCV1, based on MCV1; not directly reported.

Pol3 (Polio)

• Consistently 99–100% across years
• GoC: •• or •••

IPV1 (Inactivated Polio Vaccine)

• Coverage available since 2015
• Recent years: 96–98% (2022–2021)
• GoC: ••● or ●D+

HepB (Hepatitis B Birth Dose)

• No estimates available since 2015 (marked NA)
• If conducted, estimates often show 99–95% in years where available

Hib3 (Hib Vaccine)

• Consistently 99–100% across years
• GoC: •• or •••

RotaC (Rotavirus)

• No estimates available since 2015
• GoC: NA

PcV3 (Pneumococcal Conjugate Vaccine)

• No estimates available since 2015
• GoC: NA

Key Observations

• Sri Lanka maintains consistently high immunization coverage rates across multiple vaccines.
• Data is collected from various sources and assessed with a confidence grade (GoC).
• Administrative, official, and survey-based coverage levels consistently show a contribution from the private sector.
• The most recent revision is dated July 15, 2024, with data received as of June 26, 2023.

Notes

• Sri Lanka targets continued high performance; recommendations include using survey-based assessments to validate coverage.
• These estimates should be used with caution and tailored to the specific context of their application.