Further
reading
Benenson,
A.S. (ed.) (1995) Control of Communicable Disease Manual, 16th edn,
American Public Health Association, Washington, DC.
Mandel, G.L., Douglas, R.G.
and Bennett, J.E. (1989) Principles and Practice of Infectious Diseases, 3rd
edn, Churchill Livingstone, Edinburgh.
Manson-Bahr, P.E.C. (1996) Manson’s
Tropical Diseases, 20th edn, WB. Saunders, London.
Shanson, D.C. (1988) Microbiology
in Clinical Practice, 2nd edn, Wright, London.