NEW DELHI — India’s homegrown vaccine developer Bharat Biotech has warned people with weaker immunity and other medical conditions that include allergies, fever, or a bleeding disorder to consult a doctor before getting the shot — and if possible avoid the vaccine.

The vaccine by Bharat Biotech ran into controversy after the Indian government allowed its use without concrete data that showed it was effective in preventing illness from COVID-19. Tens of thousands of people have been given the shot in the past three days after India started inoculating its health care workers last weekend in what is likely the world’s largest COVID-19 vaccination campaign.

The company Tuesday said those receiving jabs should disclose their medical conditions, medicines they are taking and any history of allergies.

India on Jan. 4 approved the emergency use of two vaccines, one developed by Oxford University and U.K.-based drugmaker AstraZeneca, and another by Bharat Biotech. But the regulator took the step without publishing information about the Indian vaccine’s efficacy.

Most hospitals in India are inoculating health care workers with the AstraZeneca vaccine. But hospitals in New Delhi that have been administering the Bharat Biotech vaccine have seen many doctors hesitate to take the shot.

India is second only to the U.S. with more than 10.5 million confirmed cases. It has seen over 152,000 confirmed virus deaths.