Common Diseases in Humans: It is a condition in which one or more organs or systems of the body are adversely affected. Disease is characterized by various signs and symptoms.

Common Diseases in Humans

Typhoid:

• Pathogen: Salmonella typhi.
• Symptoms: High fever, weakness, stomach pain, constipation, headache and loss of appetite, intestinal perforation and death may occur in severe cases.  Typhoid fever could be confirmed by Widal test.
• Mode of transmission: These pathogens generally enter the small intestine through contaminated food and water and migrate to other organs through blood.

Pneumonia:

• Pathogen: Streptococcus pneumoniae and Haemophilus infuenzae.
• Symptoms: the alveoli get filled with fluid leading to severe problems in respiration. Symptoms include fever, chills, cough and headache, in severe cases the lips and finger nails may turn gray to bluish in colour.
• Mode of transmission: transmitted through droplets of infected persons.

Common Cold:

• Pathogen: Rhino viruses.
• Symptoms: nasal congestion and discharge, sore throat, hoarseness, cough, headache, tiredness.
• Mode of transmission: through droplets of infected persons.

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By Team Learning Mantras