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  Indian J Med Microbiol
 

Figure 5: Graph showing no growth and one colony growth for Group A (Adi's Face mask), Group S (Surgical mask), and Group N (N95 mask), while two and more colonies for Group D (Direct speech without mask) (original)

Figure 5: Graph showing no growth and one colony growth for Group A (Adi's Face mask), Group S (Surgical mask), and Group N (N95 mask), while two and more colonies for Group D (Direct speech without mask) (original)