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SAGE chairman Alejandro Cravioto said the vaccine provided a strong level of protection against severe disease for at least six months, although data suggest immunity to severe disease is reduced in the elderly and those with underlying health conditions.

WHO Department of Immunizations Director Kate O'Brien said the Covid-19 vaccine provided "excellent" protection for six months after the second dose with some "small, medium reduction" in protection.

This recommendation was issued in line with concerns that the Omicron variant of Covid-19, which is said to be more contagious, would reduce the vaccine's ability.

https://www.cnbcindonesia.com/tech/20220...inovac-cek