Polish President Lech Kaczynsky on Monday afternoon left a hospital he enterned for medical checks caused by a viral infection earlier in the day.

According to Kaczynsky's personal doctor, quoted by Earthtimes.org, underwent routine checks after reporting fever on Sunday to Monday night. He was suggested not to restart work for several days after leaving hospital.

The medical trouble prevents the head of Polish state to attend a school opening ceremony.

Aged 58, the Catholic conservative Lech Kaczynsky became president of Poland two years ago. He named his twin brother to lead the government.

Presently, the two brothers are the center of a political scandal in Poland, as the Prime Minister is accused of having intercepted phone calls of his political adversaries. The accusation was launched by the former Interior Minister, Janusz Kakzmarek.