Two crossed lines that form an 'X'. It indicates a way to close an interaction, or dismiss a notification.An icon in the shape of a person's head and shoulders. It often indicates a user profile.Redeem nowSign up for our newsletter to get the latest healthcare news and analysis — delivered weekly to your inbox.Something is loading.Moderna's coronavirus vaccine is probably still protective against a virus strain first found in South Africa, but the Massachusetts biotech on Monday said it planned to soon start testing a booster shot tailored to protect people against that variant.Moderna's...…Two crossed lines that form an 'X'. It indicates a way to close an interaction, or dismiss a notification.An icon in the shape of a person's head and shoulders. It often indicates a user profile.Redeem nowSign up for our newsletter to get the latest healthcare news and analysis — delivered weekly to your inbox.Something is loading.Moderna's coronavirus vaccine is probably still protective against a virus strain first found in South Africa, but the Massachusetts biotech on Monday said it planned to soon start testing a booster shot tailored to protect people against that variant.Moderna's...WW…