Abstract. The diagnostic value of enzyme-linked immunosorbent assay (ELISA) was evaluated when blood specimens of 92 patients suspected of brucellosis underwent the ELISA (IgM and IgG), standard tube agglutination (SAT) , and 2-mercaptoethanol (2-ME) tests and blood cultures; 38 sera from non-brucellosis patients and 34 sera from blood donors were also subjected to ELISA, SAT, and 2 -ME tests. SAT was able to pinpoint only 23 (25%), whereas ELISA confirmed the etiology in 56 (60.9%; P < 0.001) patients with brucellosis, including 31 culture-confirmed cases. The sensitivity and specificity of ELISA were 100% and 71.31%, respectively. Because they were confirmed by ELISA, the diagnosis could never be excluded with SAT in 33 cases. ELISA has been found to be more sensitive in acute (28% higher sensitivity; P < 0.02) and chronic (55% higher sensitivity; P < 0.01) cases. For accurate diagnosis in suspected brucellosis cases detection, we recommend both ELISA IgM and IgG tests. ELISA IgG and 2 -ME tests seem to be promising tools in judging prognosis.
An outbreak of acute diarrhoea occurred in the Belgundi area (population 3896) of Belgaum Taluka (population 815 581) in Karnataka, South India, in June 2010. An estimated 16.22 % of people were affected and 0.16 % deaths were reported. Vibrio cholerae O1 El Tor was isolated from 18 of the 147 stool samples cultured. Seven out of eight drinking water samples collected from different sources were found to be grossly contaminated with faecal coliforms. All isolates were multidrug resistant, with some showing resistance to quinolones, gentamicin and cephalosporins in addition to co-trimoxazole and tetracycline, the drugs that were being used by the state health authorities for empirical treatment. Two serotypes and at least eight genotypes of V. cholerae were observed among the isolates. Cholera was confirmed as one, if not the only, cause of the outbreak, which, to our belief, is the first report of cholera from this region. It might have occurred due to a 'flare up' in the number of endemic strains triggered by shortage of portable water, onset of monsoon rains and breakdown of sanitation systems, rather than being a de novo outbreak arising out of new exogenous infectious sources. A change in the empirical treatment, coupled with chlorination, improvement in sanitation measures and extensive Information Education Communication activities, resulted in decline of the outbreak and prevention of further deaths.
Splenic abscess due to Brucella species is an extremely rare complication especially in acute illness. Here we report a case of splenic abscess caused by Brucella melitensis biotype 1 in a child with acute infection who was successfully treated with only antibiotics.
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