S1E1R1O1V4A1R1S1
11 points
SEROVARS is validvalid
SEROVAR, a group of microorganisms having a characteristic set of antigens [n]
SEROVAR, a group of microorganisms having a characteristic set of antigens [n]
SEROVAR, a group of microorganisms having a characteristic set of antigens [n]
SEROVAR, a group of microorganisms having a characteristic set of antigens [n]