COVID-19 vaccine leaves most cancer patients unprotected, a new report warns.In clinical trials last year, the messenger RNA vaccines were tested with second doses given either three or four weeks after the first depending on the vaccine.
Canada saw over 13,000 ‘excess deaths’ during 1st year of COVID-19: StatCan In January, the UK decided to delay second doses until 12 weeks.
At Kings College London, doctors studied 205 adults who received the Pfizer/BioNTech vaccine, including 151 cancer patients.After the first dose, almost all the healthy individuals had strong immune responses, but that was true for fewer than half of patients with solid tumors and fewer than one-in-seven patients with blood cancers, said Dr.