The Centers For Disease Control And Prevention has a simple message for anyone planning a trip to Mexico during the holidays: Don’t go.

The CDC has issued a red, level 4 advisory — its highest-level warning — against travel to Mexico.

"Travelers should avoid all travel to Mexico," says the advisory issued Saturday.

Ignoring the warning could increase chances of contracting and spreading the coronavirus, the advisory says. And people who become infected with COVID-19 while traveling could be required to isolate or prevented from returning to the United States as scheduled.

Those who must travel should be tested prior to, during and after the trip and carefully follow safety protocols including mask-wearing, social distancing and hand washing.

There have been more than 1 million confirmed coronavirus cases and nearly 103,000 deaths in Mexico.