The same people are sampled each week, irrespective of whether they know they may have Covid-19 or have reported a positive end result. लेकिन दोनों देशों के रिश्तों की समझ रखने वाले कई जानकारों को इस पर शक है. The Polish govt also introduced that it's going to shorten Covid-19 https://bookmarkity.com/story18408107/an-unbiased-view-of-top-news-today