a sneezing man with drops of saliva on a black background. the concept of the spread of diseases by airborne droplets

ache adult airborne allergy background bad beard black blow blowing caucasian cloud cold concept cough disease diseases droplets drops elbow expression face fever flu head health ill illness infection infectious influenza isolated male man medical medicine nose pain people person photo portrait prevention saliva sick sickness sneeze sneezing spray spread stressful studio unhappy unhealthy unwell viral virus