STEPHEN I. MORSE, M.D.
Whooping cough at the turn of the century was a major factor in infant morbidity and mortality in the United States. The attack rate in family epidemics was extraordinarily high and often greater than 90%, a rate seen in outbreaks of chickenpox or measles. The disease tended to affect the very young; the median age at attack was under 4 years. About 85% of children at the age of 7 had had clinical pertussis.
Deaths due to whooping cough were usually associated with secondary pyogenic or viral invasion of the respiratory tract, although inanition and electrolyte imbalance played important roles.
MORSE SI. Pertussis in Adults. Ann Intern Med. 1968;68:953–954. doi: 10.7326/0003-4819-68-4-953
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Published: Ann Intern Med. 1968;68(4):953-954.
Infectious Disease, Pulmonary/Critical Care.
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