supulvada says it's not likely. >> with a covid vaccine will be exceedingly high. we all will want to be vaccinated if we have a safe and effective vaccine. >> reporter: the executive director for the global health sciences at ucsf. despite low rankings with flu vaccinations, he expects just the opposite for covid vaccinations. >> covid-19 has a case fatality rate ten times higher than influenza. if and when we have a safe and effective vaccine, we will see people lining up. my guess is that even anti-vax people will people will be lining up to get a vaccine because of the fear. >> reporter: his team ranks california as above average when it comes to overall health and safety. the latest cdc data backs up. for certain vaccinations like the measles, mumps vaccine. california ranks above the national average with more than 96% receiving the mmr last year. dr. supulveda says it's necessary for trends like that to continue as soon as a reliable covid vaccine is available. >> this virus will not go away. >>> scientists may have a new weapon against coronavirus and the t