Health Porto Alegre flu vaccination rate for children under five falls below 14% as campaign begins by Dr Natalie Singh - Health Editor April 17, 2026 by Dr Natalie Singh - Health Editor April 17, 2026 Less than 14% of children aged six months to five years in Porto Alegre have received the flu vaccine three weeks into the immunization campaign, according to data released by … 0 FacebookTwitterPinterestEmail