MEXICO CITY — All pro soccer games in Mexico this weekend will again be played without fans because of swine flu. The decision comes even though other parts of the country are returning to normal following a shutdown to contain the virus.

Mexico's 176 league games — from the first to third division — were shuttered last weekend and three games around the capital were closed to fans the week before.

The Mexican soccer federation said Tuesday the games would remain closed because the government had not lifted all preventive measures.

"The decision was made in full awareness of the emergency health situation that confronts the country," the federation said in a statement.

Regular-season play ends this weekend, and officials have not announced postseason plans.

Two Mexican soccer teams in the round of 16 of the Copa Libertadores — San Luis and Chivas — have had home games delayed by at least a week until venues outside Mexico can be found. San Luis was to have hosted Nacional of Uruguay, and Sao Paulo was to have played at Chivas in the first leg this week.

Away legs in the Latin America club championship are to be played in Uruguay and Brazil. Nacional suggested Houston as a possible venue.

"The TV rights holders have not proposed this officially, it's just an idea they suggested to us," Nacional official Alejandro Balbi said. "With all the doubts there are we are applying for visas to be ready to play in Houston."

As of Tuesday, the CONCACAF Champions League match in Cancun on May 12 between Mexican clubs Cruz Azul and Atlante is set to go ahead. Atlante leads 2-0 after the first leg. The winner of the home-and-away series qualifies for the FIFA Club World Cup in December in United Arab Emirates.

The second leg was to have been played last Wednesday.

Mexico's professional baseball league will resume Wednesday after suspending all games from May 1-5. It was not immediately clear if the games would be played with fans.

President Felipe Calderon said high schools and universities will reopen Thursday and younger children will return to school May 11. Nightclubs and other events that draw large crowds will remain closed.

In Albuquerque, N.M., high school sports organizers defended a decision to suspend this week's events after 16 schools closed amid swine flu concerns. The New Mexico Activities Association cited fairness, emphasizing the move was made to place all schools on equal footing.

District and state championships in baseball, softball track and field, golf and tennis were affected. All events were tentatively rescheduled for the week of May 11.