BUENOS AIRES (REUTERS) - Argentina's Covid-19 cases hit 3 million on Sunday (May 2), as medical workers said hospitals were at full capacity despite toughened government measures to bring down the spread of infections.

The country's Health Ministry said there were 11,394 new cases over the last 24-hour period, pushing the total number up to reach the grim new milestone, with 156 new deaths taking fatalities to 64,252.

The government of President Alberto Fernandez this week unveiled a new round of tougher restrictions as a second wave of infections has battered the country, filling up intensive care units and setting new daily records for cases and deaths.

But medical staff said it was still not enough.

"People need to be a little more aware and know that the hospitals are full and that health personnel are exhausted," said 41-year-old surgical assistant Luciana Berti.

The South American grains producer, which has gone through three straight years of recession, exacerbated by the pandemic, is balancing the need to stem the spread of the virus while protecting a fragile economic recovery.

Marcela Cid, who owns a business on the outskirts of Buenos Aires, said that Argentines were increasingly "locked into a situation" that, while necessary, was of little help to anyone trying to move beyond the pandemic.

Argentine paediatrician Carlos Kambourian said that the key would be speeding up a stalled vaccination campaign. Otherwise, he warned, hospitals would be overwhelmed. Intensive-care beds are around 68.1 per cent occupied nationally, government data showed.

"Today, the health system does not support one more patient," Dr Kambourian said. "It is already overflowing."

"We can continue to extend measures every 15 days from here until two years from now if we don't do what needs to be done, which is to test and vaccinate, test and vaccinate," he said.