fox29.com
83%
649
Moderna COVID-19 vaccine remains 93% effective for up to 6 months, company says
CAMBRIDGE, Mass. - Moderna’s COVID-19 vaccine remained 93% effective against symptomatic illness six months after the second dose, but amid the ongoing spread of the highly contagious delta variant, the company said it believes a booster dose will be necessary prior to the winter season. The company announced the findings Thursday ahead of an earnings call, which also said its vaccine booster candidates produced a "robust" immune response against the delta variant.Moderna said it believes the highly contagious strain of the virus, along with more people indoors as it gets colder, will "lead to an increase of breakthrough infections in vaccinated individuals." "While we see durable Phase 3 efficacy through 6 months, we expect neutralizing