Either the United States government + World Health Organization + UK's Department of Health and Social Care are incorrect or Dr. Anthony Fauci is incorrect.

Since at least February 11, 2020, the United States government has publicly known, "An important approach to lowering the concentrations of indoor air pollutants or contaminants including any viruses that may be in the air is to increase ventilation – the amount of outdoor air coming indoors. Ensuring proper ventilation with outside air can help reduce the concentration of airborne contaminants, including viruses, indoors. Proper ventilation also reduces surface contamination by removing some virus particles before they can fall out of the air and land on surfaces. However, by itself, increasing ventilation is not enough to protect people from COVID-19. When used along with other best practices recommended by CDC and others, increasing ventilation can be part of a plan to protect people indoors."

Why hasn't the United States promoted its own findings from February 11, 2020 on how opening doors and windows reduces COVID-19? How many more people have to get sick and/or die before the United States starts promoting opening doors and windows?

World Health Organization recommends opening windows

UK's Department of Health and Social Care recommends opening windows

Pets can get covid19 yet can't get vaccinated.