The Widal test is a serological assay used to diagnose typhoid fever and paratyphoid fever, which are infections caused by the bacteria Salmonella typhi and Salmonella paratyphi. This test identifies the presence of specific antibodies in the blood that react against the antigens of these bacteria.
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A "Vitamin B12 Test in Delhi" measures blood levels of vitamin B12 to diagnose deficiencies and assess overall health. Vital for nerve function and red blood cell production, maintaining adequate B12 levels is crucial. Many healthcare facilities in Delhi offer this test, enabling early detection and timely treatment through dietary changes or supplements.