In the early months of the Covid-19 pandemic, there were shortages of cleaning supplies like antibacterial wipes and disinfectant sprays as everyone focused on sanitizing surfaces. The World Health Organization initially stated that Covid-19 was not airborne, leading to confusion among scientists and physicians. In November 2021, the WHO updated its guidelines to recognize the airborne transmission of the virus, dividing it into different categories. The new definitions reflect the science of disease transmission more accurately, but there is still debate on the implications for infection control policies. The multidisciplinary approach to addressing disease transmission marks progress in global health efforts.
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WHO expands which pathogens can be transmitted through the air
