how to overcome vaccine hesitancy and skepticism. since data shows vaccines are the best protections against coronavirus. now some plan to hit the unvaccinated where it hurts the most, in the wallet. cnn explains. reporter: it just got more expensive to be unvaccinated in austria. the country s parliament passed a measure to make covid-19 vaccinations mandatory for all adults. translator: if we want to break the circle of lockdowns, we need this law and an end to the restrictions to protect us from the coronavirus. and i think that s what we all want. reporter: after being passed by the upper house of parliament and signed by the president, the measure is set to come in force in february, with fines of up to roughly $4,000 rolling out in mid-march for anyone who can t provide proof of vaccination. it will be the strictest covid-19 law in europe,