The price has risen as a result, as authorities opt for more conventional measures to slow the winter spread of the H1N1 flu virus.
More than 600 cases were reported in the first two weeks since the strain first appeared in the region.
Last week, Deputy Prime Minister M. Enkhbold declared a 14-day shutdown of all cultural, sporting events, marketplaces, entertainment venues, kindergartens, schools, public gatherings and scheduled conferences, workshops or seminars.
He delayed all non-emergency surgery.
The English-language UB Post reported Enkhbold as saying that flu infection levels were increasing "rapidly" for a population of 2.7 million.
The onset of winter has seen a rapid rise in H1N1 cases across Asia.