The study comparatively evaluated serological assays, namely, Weil Felix assay, and IgM ELISA with the gold-standard immunofluorescence test (IFAT) for the sensitive and specific serodiagnosis of scrub typhus infection in occupationally exposed groups of humans. A total of 78 serum samples collected from persons affected with various ailments and belonging to different risk groups were screened in the study. Out of the 78 serum samples tested, a total of 17, 26, and 47 samples turned out to be positive by IFAT, IgM ELISA, and Weil Felix test, respectively. The Weil Felix assay could not serve as an ideal test for screening scrub typhus infection owing to its poor sensitivity and specificity in comparison with IFAT. IgM-ELISA could be an initial screening test to detect scrub typhus suspected patient in limited resource settings.
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http://dx.doi.org/10.1016/j.mimet.2023.106875 | DOI Listing |
Infect Chemother
December 2024
Division of Infectious Diseases, Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea.
Tsutsugamushi disease is a febrile mite-borne disease caused by . Before 1945, this disease had been prevalent in Niigata, Akita, and Yamagata prefectures for centuries, occurring in areas along major rivers in these prefectures every summer about a month after floods. The patients affected were farmers, possibly new settlers on reclaimed lands, who contracted the disease following bites of tiny red bugs.
View Article and Find Full Text PDFIndian Pediatr
January 2025
ICMR Regional Medical Research Centre, Gorakhpur, Uttar Pradesh, India. Correspondence to: Dr Manoj Murhekar, Director-in-Charge, ICMR-Regional Medical Research Centre, Gorakhpur, Uttar Pradesh, India 273013.
Objective: To estimate the proportion of children with acute febrile illness (AFI) attending the peripheral health facilities in Gorakhpur, Uttar Pradesh, India, due to Orientia tsutsugamushi (Ots) and re-evaluate the strategy of presumptive administration of doxycycline/azithromycin (PDA) to patients with AFI.
Methods: Children aged 2-18 years with AFI attending 16 peripheral health facilities in Gorakhpur, Uttar Pradesh, were enrolled in September 2023. Blood samples were tested for O.
Indian J Pediatr
December 2024
Department of Pediatrics, Gauhati Medical College, Guwahati, 781032, India.
New Microbes New Infect
December 2024
National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 102206, Changping District, Beijing City, China.
Acute encephalitis syndrome (AES) is a significant public health issue in India, attributed to various etiologies. In eastern Uttar Pradesh, Japanese encephalitis (JE) was the leading cause of AES (10-14% of total AES) until scrub typhus (ST), caused by , was identified in cerebrospinal fluid and blood samples of AES patients contributing more than 60% of AES cases. This study investigates the prevalence of JE-ST coinfection and compares clinical outcomes among JE mono-infection, ST mono-infection, and JE-ST coinfection.
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