FLU—Not many, for reasons already explained - hard to catch flu when so many people are isolating and social distancing.
Plastic step - no idea what that means?
Person to Person. People with flu can spread it to others up to about 6 feet away. Most experts think that flu viruses spread mainly by droplets made when people with flucough, sneeze or talk. These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.
COVID —
The main way of spreading COVID-19 is through close contact with an infected person. When someone with COVID-19 breathes, speaks, coughs or sneezes, they release particles (droplets and aerosols) containing the virus that causes COVID-19. These particles can be breathed in by another person
Dunno about you but to me those explanations as to how you catch both Covid and flu are basically the same are they not?
Do you want to carry on making yourself look silly or shall we bring in your plastic step conundrum?