Studies have found the Pfizer vaccine to be effective against the Delta Variant. “Those who go abroad and need the Pfizer vaccine have to submit the required documents. Among them may be those who are going to study abroad and those who are going to work,” he said. The first consignment of 26,000 doses of the Pfizer vaccine purchased by the State Pharmaceuticals Corporation (SPC) arrived in Sri Lanka on 5 July, while another consignment of 26,000 doses of the Pfizer vaccine arrived in the country on 12 July. The Pfizer–BioNTech Covid-19 vaccine is an mRNA-based Covid-19 vaccine jointly developed by an American pharmaceutical company, Pfizer, and a German biotechnology company, BioNTech.