Up to 40% of frontline workers in LA county have refused COVID-19 inoculation. But why is this number so staggeringly high number? Many health workers have expressed concerns on regards to how "new the vaccine was", as well as "how it could affect fertility or pregnant women." However, experts warn that such reluctance to the jab can lead to bigger problems for health services in the country down the line, and ask authorities for more clarity, understanding and persuasion around it. Amanda Holpuch reports for the Guardian.