Lessons learned from the investigation of a COVID-19 cluster in Creil, France: effectiveness of targeting symptomatic cases and conducting contact tracing around them oleh Franck de Laval, Anaïs Grosset-Janin, François Delon, Alexandre Allonneau, Christelle Tong, Flavie Letois, Anne Couderc, Marc-Antoine Sanchez, César Destanque, Fabrice Biot, Françoise Raynaud, Christine Bigaillon, Olivier Ferraris, Etienne Simon-Loriere, Vincent Enouf, Dinaherisoa Andriamanantena, Vincent Pommier de Santi, Emilie Javelle, Audrey Mérens