Inmunova director Fernando Goldbaum said the serum helps patients by suppressing viral proliferation, giving the body time to muster its own defensive system.
He said the COVAX programme could begin vaccinating people in February, and there was an effort to speed it up so some vaccinations in poor countries could take place this month.
Last week authorities extended some COVID lockdown curbs until Jan. 18, including the temporary closure of hospitality venues and non-essential retailers.
Britain recorded 46,169 new COVID-19 cases on Monday, government statistics showed, with 529 more deaths within 28 days of a positive coronavirus test.
The first daily vaccination statistics showed that nearly 2.3 million people had so far received their first doses of a COVID vaccine and nearly 400,000 had received a second dose.
World Bank Group President David Malpass said the investment would help improve livelihoods as those countries recovered from the outbreak and dealt with the impact of biodiversity loss and climate change through 2025.
The South Asian country of more than 160 million in November signed a deal with the Serum Institute of India to buy 30 million doses of the vaccine developed by British drugmaker AstraZeneca.
The vaccine will be first applied on the health workers and it will be monitored for the next seven days. After that, we'll begin the vaccination across the country in the first week of February.
"There was no evidence of harm associated with the administration of convalescent plasma" (and) the trial is continuing to recruit hospitalised COVID-19 patients.
It is biologically plausible that patients who are not producing antibodies at the time of convalescent plasma therapy and those patients with excess virus may benefit more than others.
Airport managers are personally supervising the implementation.
Several passengers were denied entry into the airports for not following the SOPs set by the authority.