ACROBiosystems is a leading manufacturer of recombinant proteins and other critical reagents to support the development of ta ... rget therapeutics, vaccines, and diagnostics. ACRO established long-term collaborations with big pharma like Pfizer, Novartis, and Johnson & Johnson, and well-known academic institutes. As the viruses is constantly mutating, new variants are expected to potential increase transmissibility and severity of COVID-19. ACROBiosystems has developed a collection of recombinant antigens for these emerging variants. ACROBiosystems recently launched a ready-to-use neutralizing antibody titer serologic assay kit (Cat.No. TAS-K022) which can sensitively and specifically detect COVID 19 neutralizing antibodies within 2 hours. The kit performance shows high correlation with FDA-EUA approved ELISA kit! The core technology platforms focus on mammalian cell-based recombinant protein production and process development. We have multiple offices and branches in North America, Europe, and Asia, and we are proud of serving customers from over 50 countries. read more