"The WHO (World Health Organisation) yesterday at a meeting informed us that the actual shipments were less than 13 million." he said. "That's 10% percent of what we were told we would get."
The WHO is hoping more countries will follow France and Sweden in donating shots to COVAX after inoculating their priority populations to help address a gulf in vaccination rates.
Brazil, Colombia, Mexico, the Philippines, South Africa, and Ukraine are set to be among the main recipients of the Pfizer vaccine between April and June, according to GAVI's table "based on current knowledge of COVID-19 vaccine supply availability".
Once praised by the World Health Organization for its decision to procure vaccines through the global scheme, South Korea is now facing criticism at home as the government scrambles to meet the supply shortfall.
South Korea, Indonesia, the Philippines and Vietnam are among countries to be hit by shipment delays to vaccines they have been promised following export curbs by manufacturer India.
The second phase of the country's vaccination programme, which includes the elderly, essential workers and those with co-morbidities, would start around late April or early May.
Bosnia had not received any vaccines until last week, when its first batch of Russia's Sputnik V vaccine arrived.
Bosnia, which also comprises the Bosniak-Croat Federation that has not received any vaccines yet, has ordered 1.2 million vaccine doses under the COVAX scheme and nearly 900,000 from the EU.
"Eight million doses we are guaranteed to receive through the global COVAX mechanism. We are also working to increase supply through COVAX to 16 million doses.
The health ministry said the volume was around 1.9 million doses.