Communicable Diseases are diseases that do not transfer from one person to another.

Infectious Diseases are also called Communicable Diseases.

Bacteria, fungi, and virus are pathogens which cause diseases.

The most common reservoir of pathogens is the human body.

The leading cause of death which is communicable is tuberculosis.

Coughing and sneezing are direct modes of transmission that causes infection.

Dry cough, tiredness, lost of taste or smell and nasal congestion, are some of the indications of the Illness stage.

Pneumonia is caused by virus, bacteria, and fungi.

Dengue and Malaria are caused by mosquito and are vector-borne disease.

Common Colds is one example of Communicable Diseases

incubation stage is the period starting from the enrty of the pathogen until the appearance of the first sign. For example: COVID 19, which is the time between exposure to the virus and onset of symptoms is on average of 5-6 days, but can be as long as 14 days.

Prodromal stage  starts from the onset of non-specific signs and symptoms such as fever.

Illness stage begins when more specific signs and symptoms appear. For COVID 19, these are dry cough, tiredness, lost of taste or smell, nasal congestion, red eyes, ached and pains, headaches, sore throat, diarrhea or skin rash.

convalescence stage is the last stage of infection

infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites.