The testing for COVID 19 in New York was similar to the way we were doing it in London, but we had to do our own swab, first swab the back of the throat using a circular motion 4 times, without wanting to be sick, then the nostril for 15 seconds, put it into the vial and bag, which only had a barcode on it, and hand it over on the way out, we had drive through testing centres we had to wear a mask at all times and use hand sanitizer, results are available in 48 hours and are sent via email. No prescription is needed but you did need to book online, we do our own lateral flow test still regularly at home, even though we have both had two vaccinations and now we both have had our booster vaccination 6 months after the second one, all 3 of them are on our NHS (National Health Services) Health app, it also generates a QR code that can be scanned to allow you entry into venues etc, which we needed to have when we visited The French Riviera a few weeks ago, no vaccinations meant no entry into the country.