NEW DELHI—Competing Brazilian politicians have ended up inviting both China’s Sinovac and India’s Serum Institute for COVID-19 vaccines amid delays in the production of Brazil’s own vaccine. Meanwhile, the country’s private clinics have turned to another Indian vaccine producer, Bharat Biotech, for 5 million doses of its COVID-19 vaccine called Covaxin. Brazil has the third-highest cases of CCP virus, but, despite having the capacity to produce the vaccine, the country’s administration couldn’t achieve the timely production of a home-made vaccine. President Jair Bolsonaro’s rival and contender in the 2022 presidential race,  the governor of Sao Paulo, Joao Doria, invited China’s Sinovac to supply its Coronavac vaccine for the 44 million residents of his province. Coronavac whose acquisition cost Doria $360 million (92 billion reals) was at the phase three trials at Sao Paulo’s Butantan Institute and was cleared by the National Health Surveillance Agency (Anvisa), the country’s drug authority. The …