Thread by @zules7172

A Thread On RADT (Rapid Antigen Detection Tests) & RT-PCR (Reverse Transcription Polymerase Chain Reaction)

➡️RADT gives result in 15-20 minutes. It is temperature sensitive, if it is hotter, it is less sensitive. It is throwing up a lot of false negatives.

Read On⬇️ #COVID19

➡️RADT is underlined by advisories that call for each negative diagnosis among symptomatic patients to be reaffirmed with RT-PCR, the “GOLD STANDARD” for Covid-19 diagnosis.

➡️RT-PCR test report comes in 24-48 hours

Read On⬇️ #COVID19

➡️From June 18-July 16, Delhi has conducted 305820 RADT

➡️285225 tests came Negative

➡️Of them⬆️1670 (about 0.5%) were chosen for re-test by RT-PCR

➡️262 of these⬆️were confirmed Positive through RT-PCR...15.68%

➡️15.68% of 285225= 44723

Read On⬇️
thehindu.com/news/cities/De…

➡️If someone has #COVID19 & after RADT, the one is let off with -ive report, it'll result in spread of virus (15.68% is a huge number)

#JustAsking
➡️If to reconfirm from RADT, one has to go for RT-PCR, then why not use RT-PCR test only?
➡️Why #ICMR is pushing RADT for Covid-19?