Cyfraddau brechu
Mae cyfraddau brechu yn is na'r targed. 1,2,3,4 Mae pob brechiad yn salwch posibl sy'n cael ei osgoi neu yn achub bywyd5

Mae defnydd uchel yn helpu i amddiffyn pobl sy'n rhy ifanc neu'n rhy sâl i gael brechlynnau eu hunain.6

Mae gwahaniaeth o 11 pwynt canran yn y defnydd o frechiadau rhwng plant 4 oed sy'n byw yn yr ardaloedd lleiaf difreintiedig a'r ardaloedd mwyaf difreintiedig yng Nghymru.8

Lleoliadau trefol a phrifysgol sydd â'r risg uchaf o achosion o'r frech goch oherwydd cyfraddau brechu is ymhlith pobl ifanc. Gall brechu atal y frech goch.8
Anghydraddoldebau brechu
Mae anghydraddoldebau brechu yn gysylltiedig â llawer o ffactorau, gan gynnwys oedran, daearyddiaeth, statws economaidd-gymdeithasol ac ethnigrwydd9
Amrywiad mewn cyfraddau brechu (VCR) ledled Cymru22,3,4,7
Y nifer sy'n cael brechiadau
Nod GIG Cymru yw lleihau salwch a marwolaethau drwy gynyddu'r defnydd o frechiadau10
Mae Fframwaith Imiwneiddio Cenedlaethol 2023 yn nodi blaenoriaethau ar gyfer trawsnewid brechu yng Nghymru:
Cydraddoldeb: Dylai
byrddau iechyd sicrhau mynediad teg a chyfle i fanteisio ar y cynnig o frechu.
Brechu wedi'i alluogi'n ddigidol: Atebion newydd i gefnogi dinasyddion a delifero i’r GIG.
Llythrennedd brechu: Gwybodaeth glir a chyfathrebu cadarn i wella dealltwriaeth y cyhoedd o bwysigrwydd brechu.10
Cyfeiriadau
- Senedd Cymru Welsh Parliament, ‘Preventable disease on the rise: targeting improvement in childhood vaccine uptake’, January 2025, accessed August 2025, available at https://research.senedd.wales/research-articles/preventable-disease-on-the-rise-targeting-improvements-in-childhood-vaccine-uptake/.
- Public Health Wales Vaccine Preventable Disease Programme, ‘Weekly Influenza and Accurate Respiratory Infection Report; Influenza Vaccination Data’, May 2025, available at https://phw.nhs.wales/topics/immunisation-and-vaccines/fluvaccine/weekly-influenza-and-acute-respiratory-infection-report/.
- Public Health Wales Vaccine Preventable Disease Programme, ‘Wales COVID-19 Vaccination Weekly Surveillance Summary for the Spring 2025 campaign’, July 2025, available at https://www2.nphs.wales.nhs.uk/CommunitySurveillanceDocs.nsf/3dc04669c9e1eaa880257062003b246b/cf7a9a9adcddbb0a8025866b003a51a1/%24FILE/Wales%20COVID-19%20vaccination%20surveillance%20weekly%20report.pdf.
- Public Health Wales Vaccine Preventable Disease Programme, ‘Statement on HPV vaccination rates in Wales’, January 2023, available at https://phw.nhs.wales/news/statement-on-hpv-vaccination-rates-in-wales/.
- NHS England, ‘NHS Vaccination Strategy’, December 2023, accessed December 2024, available at https://www.england.nhs.uk/long-read/nhs-vaccination-strategy/#summary.
- NHS111 Wales, ‘Vaccinations’, accessed August 2025, available at https://111.wales.nhs.uk/livewell/vaccinations/Why%20vaccination%20is%20important/.
- Public Health Wales Vaccine Preventable Disease Programme, ‘Vaccine uptake in children in Wales; COVER Annual report 2025’, June 2025, available at https://phw.nhs.wales/topics/immunisation-and-vaccines/- cover-national-childhood-immunisation-uptake-data/cover-archive-folder/annual-reports/cover-annual-report-202425.
- Public Health Wales, ‘Targeted action can help prevent Measles outbreaks in Wales’, July 2025, accessed September 2025, available at https://phw.nhs.wales/news/targeted-action-can-help-prevent-measles-outbreaks-in-wales/.
- National Institute for Health and Care Excellence, ‘Vaccine uptake in the general population: NICE guideline’, May 2022, available at www.nice.org.uk/guidance/ng218.
- Welsh Government, ‘National Immunisation Framework for Wales’, 2023, available at https://www.gov.wales/sites/default/files/publications/2022-10/national-immunisation-framework-for-wales.pdf
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KeywordsDevolved Nations - Cymru WalesWales
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PublisherABPI
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Last modified23 October 2025
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Last reviewed23 October 2025