New Zealanders are leading three international research projects aimed at finding drugs that could effectively treat people infected with Covid-19. Researchers from the Medical Research Institute of New Zealand (MRINZ) are involved in three significant clinical trials involving patients with the virus, from people displaying mild symptoms through to those who are critically ill. MRINZ Director, Professor Richard Beasley says the trials will evaluate several treatment options at the same time in the same patient and will combine results from around the world.