CD40LG and infection: We previously described an IgM capture ELISA (MAC-ELISA) which could sensitively and specifically differentiate between infections due to any of the four DENV serotypes, Japanese encephalitis virus (JEV), Murray Valley encephalitis virus (MVEV), Kunjin virus (KUNV), Alfuy virus (ALFV), Kokobera (KOKV) and Stratford virus (STRV) [9].