by Isabelle CORTES Agence France Presse PARIS France (AFP) — The world is still not using one of its most effective weapons against Covid — properly ventilating public spaces — more than two years into the pandemic, experts warn. At the moment there is a “fragile, armed peace” with Covid-19, said Antoine Flahault, director of the Institute of Global Health at the University of Geneva. “In the hopes of stemming the tide of the […]