One
of the success stories of widespread immunization conducted earlier
in the century was the vaccination of pertussis, also known as
whooping cough. This disease often led to a devastating lung infection,
causing many deaths in children. It was pretty well suppressed
for many years due to immunization, but recently, more and more
cases are being reported, especially in areas where un-immunized
people have been prevalent. 5000 new cases are reported in the
U.S. each year, and it appears the number keeps growing. Because
of this, many physicians have to be made especially aware of the
diagnosis of disease, so we can once again prevent a potential
epidemic.
Whooping cough is a contagious infection that is so named due
to the sound a person makes with this irritating, repeating cough.
The bacterium that is usually responsible is Bordetella Pertussis.
Children younger than 1 year of age and the elderly are the most
susceptible, but even healthy adults (especially un-immunized
adults) can contract the disease leading to a chronic cough. Contaminated
respiratory droplets from people who have contracted the disease
spread the disease.
Symptoms Follow A Classic Three Stages
Of Disease Lasting About Six To Eight Weeks:
Catarrhal Stage:
This first stage is defined by a hacking cough usually at night.
Symptoms are similar to a cold with a runny nose, congestion and
sneezing. This is usually the most contagious period and lasts
about a couple of weeks.
Paroxysmal Stage:
After a couple of weeks, the coughing can get worse,
irritating and repetitive. Sometimes the cough is so bad that
the person can vomit from it. Other complications from repeated
coughing can be eye hemorrhages, hernias and coughing spells.
The typical whooping cough is present during this period, although
young infant may not develop the characteristic sound. Antibiotics
tend to be much less effective during this stage.
Convalescent Stage:
This is the third and final stage, where the coughing finally
subsides. However, another upper respiratory infection may trigger
the symptoms.
Treatment:
Drug:
Antibiotic treatment is also used for treatment of pertussis with
Erythromycin being the main drug of choice at any clinical stage.
Erythromycin shortens the course of illness if administered early.
After the onset of the paroxysmal stage of pertussis, antibiotics
do not alter the clinical course, but they can clear the organism
from the nasopharynx and thus limit the spread of disease. Other
drugs include Trimethoprim-sulfamethoxazole (Bactrim, Septra),
azithromycin (Zithromax) and clarithromycin (Biaxin).
Vaccination: The Diphtheria-Tetanus-Pertussis
Vaccine (DTP) has been very effective in preventing this disease
from occurring. The vaccine is given about five times until four
to six years of age, and it is important for parents to keep up
with their child's immunizations. Side effects of the DTP vaccine
have included fevers and soreness at the site of injection, and
a safer alternative may be the acellular pertussis vaccine (DtaP),
which is reported to have less problems. This can be given starting
at 2,4,6,15 months and at 4-6 years of age.
If a doctor suspects someone having pertussis, he or she will
often order lab tests including a chest X-ray, blood work and
a bacterial culture, which is obtained in the nasal passages.
Once diagnosed, if the disease is thought to be mild in nature,
the physician will place the patient on antibiotics. It is also
recommended that the child gets rest and a cool mist humidifier
should be used to help with the breathing. As a child often vomits
due to the violent coughing, it is important they get adequate
fluids to prevent dehydration. If the doctor believes the patient
to be hospitalized, antibiotics will be given intravenously and
possibly oxygen support.
The most important thing we can do as parents to combat this disease
is prevention. Keeping close attention of children's vaccination
schedules are paramount. The key times to remember are 2 months,
4 months, 6 months, 15 months, and 4 to 6 years.