Print Providers throughout Los Angeles County administered 144,000 fewer COVID-19 vaccine doses last week compared with the week prior — the clearest evidence yet that the demand for doses has dropped significantly. The trend has sparked concerns in some corners that it may take longer than expected for the nation’s most populous county to reach the level of widespread community inoculation experts believe is necessary to end the pandemic, if it ever does, and has officials rethinking their operations in hopes of getting more people to roll up their sleeves. “At this point, the goal is for us to make it as easy as possible for people to come in and feel comfortable getting their vaccine,” county Public Health Director Barbara Ferrer said during a news briefing.