The health authorities on Tuesday started a special campaign for administering the fourth Covid-19 vaccine dose across Bangladesh.

Prof Ahmedul Kabir, additional director general of the Directorate General of Health Services (DGHS), launched the campaign at Kurmitola general Hospital in Dhaka at 9am.

The fourth dose of vaccination will be administered at booths operating at all permanent Covid-19 vaccination centres located at city corporation/ district/ upazila/ municipal level across the country.

People aged above 60, who already received their third Covid jabs, will be vaccinated under this campaign, according to the DGHS.

Only Pfizer vaccine will be used in the campaign and the jabs will be given at permanent vaccination centres across the country.

Earlier, the National Technical Advisory Committee (NTAC) on Covid-19 recommended administering the fourth dose of vaccine to contain the further spread of the virus.

The government started mass inoculation against the Covid-19 vaccine on February 8 last year using Oxford-AstraZeneca's vaccine produced by Serum Institute of India.

Later, six other Covid-19 vaccines developed by different companies were added to the list. Those are -- Pfizer, Sinopharm, Moderna, Sinovac, Johnson and Johnson, and Pfizer-PD (Comirnaty).

Till now, as many as 148,560,738 people have been inoculated with the first dose while 125,670,627 people with the second dose and 60,611,619 with the booster dose against Covid-19.