Many falls of economies and whole cultures have been because of disease. Not that the flu would totally destroy the economy, but the dollar amount could be trememdous.
It comes down to the old 'life gives you lemons, you make lemonade' thing. If it gets to be a full-blown pandemic, I'm going to be selling masks and latex gloves out of my trunk at a very hefty markup
There's what? 45 or so cases in the US with no deaths and only one hospitalization? I'd be worried if you live in Mexico. Meantime, keep your hands clean, and your fingers out of your eyes/mouth.