Correction: Serine protease-driven entry and S2 ′ cleavage flexibility of feline coronavirus during feline enterocyte infections

• Bixia Chen, 
• Luna Vanden Buijs, 
• Nathalie Vanderheijden, 
• Lowiese Desmarets, 
• Jolien Van Cleemput, 
• Hans J. Nauwynck