Last summer, Anna Ramsey suffered a flare-up of juvenile dermatomyositis, a rare autoimmune condition, posing a terrifying prospect for the Los Angeles resident: She might have to undergo chemotherapy, further compromising her immune system during a pandemic.

After an agonising three-day wait, the results of a blood test came back in her online patient portal — but she didn’t understand them. As hours passed, Ramsey bit her nails and paced. The next day, she gave in and emailed her doctor, who responded with an explanation and a plan.