* Dined with some of Mexico's corporate bosses on Friday
* Several ministers take tests, isolate (Adds detail on president's health)
By Dave Graham
MEXICO CITY, Jan 25 (Reuters) - The Mexican president's announcement he had COVID-19 just a few hours after taking a commercial flight unleashed renewed criticism of his handling of the pandemic, which has left the country with the fourth-highest death toll worldwide.
President Andres Manuel Lopez Obrador, who has a history of heart problems and high blood pressure, said Sunday evening he was being treated for mild symptoms of COVID-19 after attending meetings and public events in preceding days.