1.   Although the federation recently urged its members to establish tighter rules for access to dangerous microbes, it has no authority to enforce compliance.

2.   And a federal crackdown appears to restrict laboratories that handle dangerous microbes from hiring certain foreigners.

3.   Another possibility is to use birth control methods that provide some protection against dangerous microbes.

4.   Already several proposals have been made in Congress to forbid some people, including certain foreigners, from working in laboratories that handle dangerous microbes.

5.   High-level biosafety labs are graded on how well they can contain dangerous microbes.

6.   I was amazed at reports that the federal government has no central inventory of universities or private laboratories with stocks of dangerous microbe cultures.

7.   Indeed, Ms. Garrett contends that many recent scientific and social developments have actually worked to amplify the range and virulence of dangerous microbes.

8.   Prescribing or misusing antibiotics can actually strengthen the most dangerous microbes by destroying weaker, competing bacteria.

9.   Shope said research with microbes less dangerous than sabia virus continues.

10.   The brewers boiled the water they used, killing dangerous microbes.