A virus

so infectious

It cripples

by an attack so subtle;

And replicates

faster than supersonic jet

but no contagion

is more fast spreading

than a cheerful disposition,

so don’t be sissy

breathe easy

any debility or disease

a smile can defeat.

If a malady

can be deadly,

a smile will

take you miles.

A smile

doesn’t waste or while;

go flex some facial muscles

and beat that rascal

the battle is clearly won

for those that smile more often!