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Stages of Infection

Posted on February 12, 2014 | No Comments on Stages of Infection

Infection is the invasion of an organism in the tissues of a living creature especially humans which often causes disease because of the disruption that these organism can cause, the toxins that harm the tissue or as a result of the negative reaction of host tissues to these organisms. The infection of the tissue is not abrupt but follows a gradual stage as follows:

Incubation Stage – or the incubation period starts in the entry of the infectious organism to the host and the time in which the organism successfully lives in the tissue. This is manifested by the facts that infectious organism continues to live in the tissue and reproduces or multiplies itself resulting to infection. At this point, a patient can already transmit infection to another person or host notwithstanding that symptoms appear in the infected person.

Prodromal Stage – the prodromal stage refers to the period in which non-specific symptoms start to appear as the infectious organism continues to reproduce and multiply and starts to invade the host. This is manifested in a slight change in temperature in the host or any other abnormal conditions such as itchy, runny nose, dry eyes, which the host feels without necessarily disrupting his normal functioning or daily routine.

Illness Stage – Also known as the clinical or peak stage, this stage is the time when the host or patient manifest specific signs and symptoms of a disease caused by infection by the organism. This can be in the form of illness, headache, muscle ache, itchiness and rashes to extreme severe aches, chills and vomiting any other symptom that indicates infection. At this point, the host is unable to perform his routine activities in life because the infection is affecting the normal functioning of the body.

Convalescent Stage – The recovery stage in which acute symptoms start to vanish or disappear and the host patient return to his normal state of health. In most cases, the pathogen resulting from infection is eliminated.

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