Select Board & Class


Human Health and Disease

  • Disease is characterised by various signs and symptoms.

Infectious diseases
  • It spreads through infectious agents that include bacteria, viruses, protozoans and fungi.
    • Bacterial diseases
      • Typhoid fever: Salmonella typhi; Widal test is used for confirmation of typhoid
      • Pneumonia: Streptococcus pneumoniae and Haemophilus influenzae; it infects the alveoli of lungs
      • Other examples include dysentery, plague, diphtheria
    • Viral diseases
      •  Common cold: Spreads through Rhino viruses…

To view the complete topic, please

What are you looking for?