 The rapid airborne transmissibility of SARS-CoV-2, and the absence of a vaccine, call for active containment measures to avoid the propagation of transmission chains.
<fluency>  The rapid airborne transmissibility of SARS-CoV-2, and the absence of a vaccine, call for active containment measures to avoid the propagation of transmission chains.
 The rapid airborne transmissibility of SARS-CoV-2, and the absence of a vaccine, calls for active containment measures to avoid the propagation of transmission chains.