you don t need any if you recognizers freezers to store it. probably the lowest cost vaccine. it s being districted outside the u.s. and currently isn t fda approved, but perhaps the most important of all, the accessibility the texas children s vaccine offers. by not having a patent, paving the way for partners worldwide. what makes the patent-free vaccines unique is companies can produce the vaccine without worrying about legal challenges and huge financial losses. reporter: with the pandemic entering year three, experts say the global health care gap, especially with vaccines, has become more exposed than ever. this is the greatest moral failure of our lifetimes, and we can t let this happen again. we have to have a world that is much more effective against preventing and responding to pandemics. and we have to have a world that s fair, more equitable, and just. and that s a global imperative.