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Canadian Neighbor Pharmacy: Discussion of Negative Acid-Fast Smears Needed To Adequately Assess Infectivity of Patients With Pulmonary Tuberculosis
Our findings suggest that index cases assessed with only two smear-negative sputum specimens can be considered no more infectious than cases with at least three smear-negative specimens. Previous studies have concentrated on the likelihood of a positive smear or culture in relation to the order of specimen collection. Craft and coworkers found no positive smears […]
The Third Epidemic—Multidrug-Resistant Tuberculosis: Discussion
During the past decade, the incidences of HIV infection and ТВ have ascended to epidemic proportions in several major US cities. At Bellevue Hospital Center in Manhattan, the incidence of MDR-TB has increased sevenfold in 1991 as compared with any of the previous 20 years. buy antibiotics online Several case series have been reported by […]
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The Third Epidemic—Multidrug-Resistant Tuberculosis: Results
We analyzed the drug susceptibilities of 4,681 cases of ТВ from 1971 to 1991 at Bellevue Hospital Center, finding a dramatic increase in MDR-TB (isoniazid plus rifampin) in 1991 (Fig 1). There was an increase from a baseline of 2.5 to 16 percent combined isoniazid plus rifampin resistance in 1991. Among the 224 positive initial […]
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The Third Epidemic—Multidrug-Resistant Tuberculosis: Methods
The reported incidence of tuberculosis (ТВ) declined for decades in the United States reaching a nadir of 22,255 cases in 1984, but then leveled off and began to rise. During the period from 1985 to 1991, approximately 39,000 excess cases occurred over and above the expected number. This alarming reversal of the downward trend in […]
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