MICROBIOLOGY
  • Viruses
    • Living and non living characteristics or viruses
    • Virus specificity
    • Virus structure
    • Lysogenic and lyctic cycles
    • Measles
    • Coxsackievirus (Hand,foot and mouth disease)
    • The 3 lines of defense of the body
  • Bacteria
    • General characteristics of bacteria and their shapes
    • Reproduction and growth of bacteria
    • Metabolism and respiration
    • Two main group of bacteria
    • Helpful bacteria
    • Tuberculosis
    • Tetanus
  • Bibliography
Most viruses are specific to the host they infect.  

This is due to :
  • specific attachment sites on the host cells called receptors
    • Receptor sites for bacteriophage are found in bacterial cell walls or fimbrae or flagella
    • Animal cell membranes contain receptors for animal viruses

  • availability of cellular factors required for viral multiplication in the host cells.
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