Photos: India's COVID-19 vaccination drive in full swing

A medical staff administers the first shot of COVID-19 vaccine to a health worker at Guwahati Medical Hospital, in Guwahati, Assam. India kicked off one of the largest vaccination drives in the world, inoculating more than 224,000 people over the weekend.

A health worker administers a COVID-19 vaccine to a person at a Hospital in New Delhi. India started inoculating health workers in what is likely the world's largest COVID-19 vaccination campaign, joining the ranks of wealthier nations where the effort is already well underway.

Health-workers flashed victory signs after being given coronavirus vaccines, while top officials sought to dispel fears about the shots as India kicked off one of the largest inoculation drives in the world on Saturday, setting in motion a complex plan to stem still rising infections across the nation of more than 1.3 billion people. Above, a frontline worker gets the first shot of COVID-19 vaccine, in Chennai.

Health care worker administering the COVID-19 vaccine, in Bengaluru. At hospitals and vaccination centers in major Indian cities - from Mumbai to New Delhi - a total of 224,301 people received vaccines over the weekend, according to data released by the federal health ministry. Prime Minister Narendra Modi launched the program with a speech addressing more than 3,300 centers across India, where the first shots were given.

Health workers wearing protective masks carrying Covid-19 vaccines walk towards the vaccination centre at the Dr. R N Cooper Municipal General Hospital in Mumbai, India.

Health workers carries a box contains Corona vaccine inside a storage depot at Civil hospital in Ahmedabad, India, "These vaccines will help India win the battle against the virus," PM Modi said, adding that Indians should get the shots and not pay heed to any anti-vaccine propaganda.

Officially, more than 10.5 million people have been infected with the disease in India, where it has also killed more than 150,000. Above, a hospital staff receives a COVID-19 vaccine at a government Hospital in Ahmedabad, India.

Indian doctor prepares to COVID-19 vaccine to a heath worker at a government Hospital in Jammu.

Frontline health workers during the launch of the pan India rollout of COVID-19 vaccination drive by Prime Minister Narendra Modi, at Topiwala National Medical College in Mumbai on Saturday.

A doctor guides a volunteer ahead of her shot of the Covishield vaccine, developed by Oxford-Astrazeneca Plc. and manufactured by Serum Institute of India Ltd., at a vaccine center in the Bandra Kurla Complex hospital in Mumbai.

The world's second-most populous nation, India is embarking on one of the earliest and most ambitious vaccination programs in Asia, where many countries are taking a slower approach in vaccinating their citizens. Above, a volunteer registers for a coronavirus vaccine at a vaccine center in the Bandra Kurla Complex hospital in Mumbai.

Nurses look at instructions regarding vaccine protocol on a mobile phone after being administered the COVID-19 vaccine at the District Hospital in Ukhrul, in the northeastern Indian state of Manipur.

People wait ahead of their Covishield vaccine, developed by Oxford-Astrazeneca Plc. and manufactured by Serum Institute of India Ltd., at the BL Kapoor Super Specialty Hospital in New Delhi.

A medic prepares the dose of COVID-19 vaccine before giving it to a beneficiary, at Ernakulam Government General Hospital in Kochi.

India has also granted an emergency-use license to the Serum Institute of India Ltd., which has partnered with AstraZeneca Plc to make at least one billion doses of their shot.

India has made its first purchase of 11 million AstraZeneca shots, as well as 5.5 million vials of Covaxin, the indigenous vaccine produced by Bharat Biotech. Above, a health care worker receives a dose of a coronavirus vaccine at a governmental hospital in Pune.

A healthcare worker reacts as she receives a dose of COVISHIELD, a COVID-19 vaccine manufactured by Serum Institute of India, during one of the world's largest COVID-19 vaccination campaigns at Mathalput Community Health Centre in Koraput district of the eastern state of Odisha.

A health worker, center, prepares to administer COVID-19 vaccine to a staff at a government Hospital in Hyderabad.

A Health worker explains post-vaccine care to a recipient after administering a COVID-19 vaccine at the Zonal Hospital in Dharmsala.