11.   All were in centers that handle mail sent to Congress, but none of those workers were immediately called in for anthrax testing or given preventive antibiotics.

12.   Authorities said postal workers citywide should begin taking preventive antibiotics.

13.   But he warned that thousands more people who work with the mail will need to begin taking preventive antibiotics.

14.   Crowds lined up outside two hospitals and a clinic Saturday after local media urged students, their parents and staff in three school districts to get free preventive antibiotics.

15.   Dr. Patrick Meehan of the CDC warned that thousands more people who work with the mail will need to begin taking preventive antibiotics.

16.   Health officials recommended anyone who had contact with local students receive preventive antibiotics.

17.   They will use the results, along with nasal swab testing, to determine which workers need a full course of preventive antibiotics.

18.   Thousands of postal workers and others who dealt with large amounts of mail already were being urged to take preventive antibiotics.

19.   Thousands of postal workers and others who dealt with large amounts of mail were being urged to take preventive antibiotics.

20.   While confirmatory tests are pending, the FDA closed all mailrooms for cleaning and put its mail handlers on preventive antibiotics.