Incorporated in 2005, GreenSignal Bio Pharma is Chennai based pharmaceutical company engaged in the development manufacture and sale of the BCG vaccine. GreenSignal is an Indian vaccine manufacturing company with global operations. The products company manufacture includes a BCG vaccine and BCG-ONCO, an immunotherapy drug. The immunotherapy drug is used in the treatment of urinary bladder cancer. Both vaccines produced by GreenSignal are generic drugs and company does not require any patents for the same. GreenSignal has a long term contract with UNICEF to supply the BCG vaccine to UNICEF. GreenSignal is among 4 companies worldwide who...