** Shares of European stocks widely considered as "winners"
from COVID-19 move sharply lower after Pfizer  PFE.N  and its
partner BioNTech  22UAy.DE  say their vaccine was over 90%
effective in preventing COVID-19 based on initial study data
 urn:newsml:reuters.com:*:nL1N2HV067
    ** German meal-kit delivery firms HelloFresh  HFGG.DE ,
Delivery Hero  DHER.DE  tumble 6-13%
    ** British online supermarket and technology group Ocado
 OCDO.L  plummets 12%, German online fashion retailer Zalando
 ZALG.DE  falls 8%
    ** E-commerce stock Allegro  ALEP.WA  slips 5%, while game
makers Ubisoft  UBIP.PA  and CD Projekt  CDR.WA  slip 6-7%
    ** Clinical testing companies Eurofins  EUFI.PA , Biomerieux
 BIOX.PA , Novacyt  ALNOV.PA , Diasorin  DIAS.MI  plunge 10-30%

 ((Tommyalexander.lund@thomsonreuters.com;
anna.pruchnicka@tr.com))