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The Library's collection of e-books is growing all the time. These Microbiology & Immunology books are online:
Fundamental Immunology, 7th ed. by 
Oxford Dictionary of Biochemistry and Molecular Biology, 2nd ed. by 
Encyclopedia of Virology, 3rd ed. by 
Fields Virology, 6th ed. by 
Principles of Molecular Virology, 5th ed. by 
Bacterial Pathogenesis: a molecular approach, 3rd ed. by 
Encyclopedia of Microbiology, 3rd ed. by 
Food Microbiology, 3rd ed. by Many key print texts are on Course Reserve. NB: Check the full library catalogue record to see whether the print title you're after is held at the Sciences Library, the Heath Sciences Library, or both.
Prescott's microbiology, 12th ed. by 
Prescott's microbiology, 11th ed. by 
Kuby Immunology, 8th ed. by 
Janeway's Immunobiology, 9th ed. by 
Introduction to Modern Virology, 7th ed. by 
Bacterial Pathogenesis: a molecular approach, 4th ed. by 
Handbook of Human Immunology, 2nd ed. by 
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