Bharat Biotech has partnered with Brazilian drugmakers Precisa Medicamentos and Envixia Pharmaceuticals Ltd. Withdrew the agreement for cooperation in the business of covaccine, its vaccine for Covid 19.br br भारत बायोटेक ने ब्राज़ील की दवा निर्माता कंपनी प्रेसीसा मेडिकामेंटॉस और एनविक्सिया फार्मेस्यूटिकल्स लि.