Pertussis has the following characteristics except __.
Multiple Choice
the early stage resembles a cold with nasal discharge and sneezing
DTaP immunization will prevent it
transmission is by droplet contact
the catarrhal stage has persistent, hacking coughs with “whoops”
the disease progresses through several distinct stages
The Correct Answer and Explanation is :
The correct answer is:
the catarrhal stage has persistent, hacking coughs with “whoops”
Explanation (300 words):
Pertussis, also known as whooping cough, is a respiratory infection caused by the bacterium Bordetella pertussis. It is a highly contagious disease that primarily affects infants and young children, although adults can also contract it.
- Early Stage Resembles a Cold
The initial (catarrhal) stage of pertussis resembles a common cold. Symptoms include nasal discharge, sneezing, mild fever, and occasional cough. This stage lasts for about 1-2 weeks and is the most contagious period. - Transmission by Droplet Contact
Pertussis spreads through respiratory droplets when an infected person coughs or sneezes. Close contact with an infected person increases the risk of transmission. - DTaP Immunization
The DTaP vaccine (diphtheria, tetanus, and acellular pertussis) is highly effective in preventing pertussis. However, immunity can wane over time, necessitating booster shots, particularly in adolescents and adults. - Distinct Stages of the Disease
Pertussis progresses through three stages:- Catarrhal Stage: Cold-like symptoms, as described earlier.
- Paroxysmal Stage: Severe, spasmodic coughing episodes with a “whooping” sound upon inhalation, often followed by vomiting.
- Convalescent Stage: Gradual recovery with diminishing symptoms over weeks or months.
The incorrect statement in the question is about the catarrhal stage. The hallmark “whooping” cough does not occur during the catarrhal stage but appears later in the paroxysmal stage, which lasts 1-6 weeks. Misidentifying this stage could lead to delayed diagnosis and treatment, increasing the risk of complications.
Prompt recognition of symptoms and vaccination are crucial to controlling pertussis outbreaks and protecting vulnerable populations, such as infants too young for vaccination.