Un o’r technolegau newydd a ddatblygwyd drwy raglen profi torfol y DU yw’r profion llif unffordd. Mae profion llif unffordd yn adnabod presenoldeb antigen feirysol COVID-19 o sampl swab. Dyfeisiau llaw yw profion llif unffordd, sy’n rhoi canlyniad o fewn 20 i 30 munud, a gellir eu defnyddio gan yr unigolyn sy’n cael y prawf. Er nad yw profion llif unffordd mor sensitif â phrofion labordy RT-PCR, mae cyngor gwyddonol wedi awgrymu, drwy brofi yn amlach gyda phrofion llif unffordd, eu bod mor ddibynadwy â phrofion RT-PCR.
One of the new technologies developed through the UK mass testing programme is lateral flow tests (LFTs). Lateral flow testing detects the presence of the Covid-19 viral antigen from a swab sample. LFTs are handheld devices which produce results within 20 to 30 minutes, with the potential to be self-administered. While LFTs are not as sensitive as lab-based RT-PCR tests, scientific advice has indicated that by testing more frequently with LFTs, their accuracy is on a par with RT-PCR tests.