Novel aspects of the Z and R3 antigens of streptococcus agalactiae revealed by immunological testing. Maeland JA, Radtke A, Lyng RV, Mavenyengwa RT. 2013. Novel aspects of the Z and R3 antigens of streptococcus agalactiae revealed by immunological testing.. Read more about Novel aspects of the Z and R3 antigens of streptococcus agalactiae revealed by immunological testing. Google Scholar