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A postinfectious cough is a lingering cough that follows a respiratory tract infection, such as a common cold or flu and lasting up to eight weeks. Postinfectious cough is a clinically recognized condition represented within the medical literature.
Post-acute infection syndromes (PAISs) or post-infectious syndromes are medical conditions characterized by symptoms attributed to a prior infection.While it is commonly assumed that people either recover or die from infections, long-term symptoms—or sequelae—are a possible outcome as well. [1]
In this condition there can be inflammation of the linings of the trachea. A condition called tracheo-bronchitis can be caused, when the mucous membrane of the trachea and bronchi swell. A collapsed trachea is formed as a result of defect in the cartilage, that makes the cartilage unable to support the trachea and results in dry hacking cough.
Post-nasal drip (PND), also known as upper airway cough syndrome (UACS), occurs when excessive mucus is produced by the nasal mucosa. The excess mucus accumulates in the back of the nose , and eventually in the throat once it drips down the back of the throat.
New research has found people can develop lingering symptoms after having a cold. Here’s what ‘long cold’ is, similarities to COVID-19, and how it’s treated.
The flu usually leads to a dry cough, and a cold tends to cause a slight cough. However, you can have any of the four conditions without cough. How do RSV, COVID, cold, and flu symptoms differ?
A cough that shows up after COVID typically goes away within four weeks, says Dr. Leykum. And it can last as long as six months after the infection, according to the American Lung Association.
The World Health Organization has reported that, in 2021, "Lower respiratory infections remained the world’s most deadly communicable disease other than COVID-19, ranked as the fifth leading cause of death." However, the number of deaths caused has decreased by around 13% from 2000 to 2021.