Translate the text from English to Welsh.



 
### **Why vaccines are important**


Vaccines teach your immune system how to protect you from diseases. It's much safer for your immune system to learn this through vaccination than by catching diseases and attempting to treat them.


It’s likely you’ve had a number of vaccinations in your lifetime to prevent catching diseases that could cause serious illness or death.


If enough people are vaccinated it’s possible to reduce or eradicate some diseases. But, if people stop having vaccines, it's possible for infectious diseases to quickly spread again.


### **Vaccine safety**


The safety standards of vaccines generally have to be higher than those for medication to treat illnesses, as vaccines are usually given to healthy people to prevent disease.


The long term response to the pandemic requires a safe and effective vaccine to be available for all who need it.


Many potential vaccines for COVID\-19 are being studied and tested. A vaccine will reach the public only when it is proven to work and be safe.This process has been sped up by prompt funding and a reduction in paperwork.


The length of the trials have not been shortened, and the usual safety measures remain in place.


### Vaccine roll out


The vast majority of people have said they would get a COVID vaccine when it’s available, to protect themselves and keep friends and family safe.


There may only be small quantities of a vaccine at first, so it will be offered to those who need it most.


It’s hoped small quantities of a vaccine could be available for those at the highest risk before the end of the year.


The Joint Committee for Vaccination and Immunisation (JCVI) has made recommendations for the provisional prioritisation for COVID\-19 vaccines. Wales and other UK administrations will be guided by the recommendations. The advice is based on preliminary information on the vaccines in development, and provisional timelines for vaccine availability, and is subject to change.


Getting enough doses for everybody will take a while after a vaccine becomes available.


In the meantime you should continue doing your bit to prevent the spread of coronavirus: regular hand washing, social distancing, and wearing a face covering where required to protect yourself and others.







Translation:


 
### **Pam bod brechlynnau'n bwysig**


Mae brechlynnau’n dysgu eich system imiwnedd sut i’ch diogelu chi rhag clefydau. Mae llawer yn fwy diogel i’ch system imiwnedd ddysgu hyn drwy frechlyn na thrwy ddal clefyd a cheisio ei drin.


Mae’n debygol eich bod chi wedi cael nifer o frechiadau ar hyd eich oes, i’ch atal rhag dal clefydau a allai achosi salwch difrifol neu farwolaeth.


Os bydd digon o bobl yn cael eu brechu, mae’n bosibl lleihau rhai clefydau, neu gael gwared arnyn nhw’n llwyr. Ond pe bai pobl yn rhoi’r gorau i gael brechlynnau, mae’n bosibl y byddai clefydau heintus yn lledaenu’n gyflym unwaith eto.


### Diogelwch brechlynnau


Rhaid i safon brechlynnau yn gyffredinol fod yn uwch na’r safon ar gyfer meddyginiaethau i drin salwch, gan fod brechlynnau fel arfer yn cael eu rhoi i bobl iach er mwyn atal clefydau.


Fel rhan o’r ymateb hirdymor i’r pandemig, mae angen brechlyn effeithiol a diogel  sydd ar gael i bawb sydd ei angen.


Mae llawer o frechlynnau posibl ar gyfer COVID\-19 yn cael eu hastudio a’u profi i weld a ydyn nhw’n effeithiol ac yn ddiogel. Mae’r broses hon wedi cael ei chyflymu drwy sicrhau bod cyllid ar gael yn brydlon a thrwy leihau gwaith papur.


Nid yw’r treialon wedi cael eu byrhau, ac mae’r mesurau diogelwch arferol yn parhau i fod ar waith.


### Darparu’r brechlyn


Mae’r mwyafrif llethol o bobl wedi dweud y byddent yn fodlon cael brechlyn COVID\-19 pan fydd ar gael, i’w diogelu eu hunain a’u ffrindiau a’u teulu.


Efallai mai cyflenwad bach o’r brechlyn fydd ar gael i ddechrau, felly bydd yn cael ei gynnig i’r rhai sydd ei angen fwyaf.


Y gobaith yw y bydd cyflenwadau bach o'r brechlyn ar gael i'r rheini sydd â'r risg fwyaf cyn diwedd y flwyddyn.


Mae’r Cyd\-bwyllgor ar Imiwneiddio a Brechu wedi gwneud argymhellion ynghylch y flaenoriaeth dros dro ar gyfer brechlynnau COVID\-19\. Bydd Cymru a gweinyddiaethau eraill y DU yn cael eu harwain gan yr argymhellion. Mae'r cyngor yn seiliedig ar wybodaeth gychwynnol am y brechlynnau sy'n cael eu datblygu, a llinellau amser dros dro ar gyfer argaeledd brechlyn, a gall newid.


Bydd yn cymryd tipyn o amser ar ôl cael brechlyn cyn y gallwn ni gael digon o ddosau i bawb.


Yn y cyfamser, dylech chi barhau i wneud eich rhan i atal lledaeniad y coronafeirws: golchi eich dwylo’n rheolaidd, cadw pellter cymdeithasol a gwisgo gorchudd wyneb pan fo gofyn ichi wneud hynny i ddiogelu eich hun ac eraill.