Important sources of contamination in crowded locations are

Question

Quizplus · Accepted Answer

Droplets of saliva or mucus are commonly spread through coughing, sneezing, or talking. In crowded locations, this can facilitate the spread of infectious diseases such as the flu or COVID-19. Blood can also be a source of contamination, but it is less likely to be a common occurrence in crowded areas. Restrooms and kitchens can be sources of contamination, but the question specifically mentions "important" sources, which implies a higher degree of relevance compared to other sources.

Important Sources of Contamination in Crowded Locations Are