Condoms are the latest item to become scarce—and costly—in Venezuela.

Once easy to find, condoms disappeared from pharmacy shelves as the year started, along with many food and .

Public health workers worry the shortage could worsen Venezuela's already of HIV and teen pregnancy.

Venezuela has the second-highest teen pregnancy rate in South America, after Guyana, according to World Bank statistics.

Merchants have begun selling condoms on the black market, using a website that is the Venezuelan equivalent of Craigslist. On Monday, a 24-pack of Durex condoms was going for $317 at Venezuela's official exchange rate, or $10 at the more widely used black market rate.