COVID-19 spike heightens 4th wave worries in Poland 15.09.2021 22:00 A spike in COVID-19 infections has heightened worries in Poland over a looming fourth wave of the pandemic. Audio 04'35 Audio report: Click to listen Polish Deputy Health Minister Waldemar Kraska.Photo: PAP/Mateusz Marek Meanwhile, the national vaccination campaign has decelerated and remains at a low ebb. Elżbieta Krajewska reports... Click on the audio player above to listen.