by Marisha GOLDHAMER WASHINGTON, United States (AFP) — Registered nurse Melody Butler seeks to provide science-based answers to American parents as she urges them to vaccinate their children against Covid-19. But her efforts to do so on social media through Nurses Who Vaccinate — a volunteer group she founded — is up against a deluge of claims that the shots are dangerous. The claims are designed to evoke fear: a 16-year-old girl said to have […]