MS-DOS resulted from a request in 1981 by IBM for an operating system to use in its IBM PC range of personal computers. Microsoft quickly bought the rights to 86-DOS from Seattle Computer Products, and began work on modifying it to meet IBM's specification.
Complications from whooping cough can include weight loss, loss of bladder control, fainting, rib fractures from severe coughing, and pneumonia. A small percentage of adolescents and adults with whooping cough need to be hospitalized for their illness. In one study, 61% of adults with whooping cough missed work.
Pneumonia Symptoms in Elderly Individuals. For most adults, infectious pneumonia first presents symptoms similar to those of the common cold: sneezing, coughing, and a sore throat. These relatively benign symptoms are soon followed by a high fever, chills, green or yellow sputum, and shortness of breath.Pain on inhalation is sometimes present. Pneumonia is common in patients who have difficulty swallowing. 2  Saliva and oral bacteria may be inhaled into the lungs, causing aspiration pneumonia or bacterial pneumonia. 3  In these patients, physical and feeding therapy, oral care, and maintaining an upright posture are all shown to decrease the incidence of pneumonia.