White House officials say so far, so good.

Anthrax tests done on mail handlers after traces of the bacteria were found at a facility that screens mail for the White House have so far come back negative.

President Bush said he feels the White House is safe and that he does not have anthrax.

"First of all, I don't have anthrax," the president said Tuesday when anthrax was discovered at the facility. Bush said that "just like with the Congress, the government is responding very quickly" to the scare.

The off-site mail processing facility, located on a military base a few miles from the executive mansion and controlled by the Secret Service, has been shut down.

Mail that arrives at the military installation is processed through the Brentwood mail facility in Washington, D.C., where two postal workers died from inhalation-type anthrax.  Three other workers are being treated for the disease at nearby hospitals.

All employees at the remote site are being tested for exposure to the disease, as are mail workers at the White House itself. 

White House officials say several test results finished Wednesday morning came back clean.

"The White House has high confidence in light of the security precautions in place," said White House spokesman Ari Fleischer Tuesday.

The Associated Press contributed to this report.