Data Byte: comparing clinical data from five COVID-19 vaccines

Five groups have reported early-stage COVID-19 vaccine data in humans and the findings suggest all of the vaccines may require two doses to induce high neutralizing antibodies and T cell responses, which could make it make it more challenging to meet manufacturing projections.

The good news is all five vaccines were able to induce neutralizing antibodies in study subjects, with titers and response rates generally correlating with the amount and number of doses...