Children from six months to four years of age are eligible for COVID-19 vaccinations from Monday.

According to the nation's vaccine authorities, three rounds of the Pfizer shot made for infants and toddlers are to be administered at an eight-week interval.

The authorities strongly recommended the vaccination for infants and toddlers at high risk for infection, such as those with underlying diseases, citing a higher rate of criticality or death compared to children and youths.

Walk-in vaccinations are available from Monday, while shots for those with reservations will be open from February 20.