15. The bacteria that is negative for fermentation of mannitol is
16. Transmission of pneumonic plague from man to man is through
17. Which of the following genus belongs to family Spirochaetaceae?
18. Which of the following bacteria is/are known as coliform bacilli?
19. The agent(s) which can cause plague is/are
20. Salmonellae can also be killed by
21. Sereny test is used for the detection of
