was limited. as a result, no countries had reliable data on the prevalence of the virus early in the pandemic. the who and other experts called for ramping up testing as the best way to slow the spread of the virus. shortages of reagent and other testing supplies became a bottleneck for mass testing in the eu, the uk and the us. early tests also encountered problems with reliability. testing protocols drive-through testing in drive-through testing, the person undergoing testing remains in a vehicle while a healthcare professional approaches the vehicle and obtains a sample, all while taking appropriate precautions such as wearing personal protective equipment (ppe). drive-through centers helped south korea accelerate its testing program. home collection a randox pcr home test kit in the uk, showing the swab, and multi-layer packaging to deliver it to the lab in hong kong test subjects can stay home and receive a specimen tube. they spit into it, return it and later get the result. pooled testing