Dr Philippa Whitford @Dr_PhilippaW
Indoor #Ventilation & air purification is critical to managing #COVID19 in long term. — PolitiTweet.org
Kimberly Prather, Ph.D. @kprather88
Someone just asked me how sure I am #COVIDisAirborne . My response: all evidence to date points to the fact this vi… https://t.co/tX9ZSnDMy8