Professor Hemantha Dodambahala, Chairman of the National Research Council, said that the Oxford Estra Seneca vaccine is 95% effective in controlling the spread of Govt 'Delta' in Sri Lanka. He also said that it was confirmed after a medical examination conducted for more than four months. In this connection, he said, the first and second doses of the Oxford-Estroseneca Covshield vaccine were used for this experiment.

It boosts the body’s immune system and controls Govt infection. Tests have shown that the body develops genetic enemies two months after vaccination.

Several specialists, including doctors from the Colombo National Hospital and the Colombo South Teaching Hospital, took part in the investigation.

He also mentioned that it is very appropriate to provide cochlear implants to the people in Sri Lanka.

Meanwhile, the synoform vaccine made in China, the Sputnik-V vaccine made in Russia, the Pfizer vaccine made in the United States and the modern vaccine are still under research, he said.