News Social Impact SF Giants ask players to mask up after 4 players test positive for COVID-19 – KRON4 Julio Marchi April 29, 2022 SF Giants ask players to mask up after 4 players test positive for COVID-19 KRON4 SF Giants ask players to mask up after 4 players test positive for COVID-19 | KRON4 Skip to content Post navigation Previous: Large portion of suburban Chicago is back to ‘medium’ COVID-19 risk; city expected to follow – Chicago TribuneNext: Upstate New York COVID-19 rates continue to lead nation – Times Union More Stories Social Impact Once-promising anti-inflammatory drug fails to improve long-COVID functional outcomes in trial Julio Marchi October 23, 2025 Social Impact IDSA releases COVID vaccine guidance for people with weakened immune systems Julio Marchi October 22, 2025 Social Impact COVID mRNA vaccines may be able to train immune system to attack cancer cells, boost survival Julio Marchi October 21, 2025