Excitement at the reopening of travel and hospitality vied with anxiety that a more contagious virus variant first found in India is spreading fast and could delay further plans to reopen.
The five-level alert system was devised last year to determine the levels of lockdown and social distancing required to keep the rate of infections from the deadly virus under check.
Each of the three oxygen generation units -- the size of 40 foot freight containers -- produces 500 litres of oxygen per minute, enough for 50 people to use at a time.
It was already announced that the SII will invest 240 million pounds in the UK to expand its vaccine business and set up a new sales office, creating a large number of jobs.
Out of the three samples sent in March for testing NCDC Delhi, two UK strain and other mutant strain of coronavirus have been found. This virus spreads more than the normal virus, sources said.
The announcement comes as England began giving out its first doses of the Moderna vaccine, the third COVID-19 vaccine in the UK's rollout that had been launched in Wales earlier.