Dataset Information

Patent Macracanthorhynchus ingens Infection in a 17-Month-Old Child, Ohio.

ABSTRACT: Limited data exist on human Macracanthorhynchus infections. We report an asymptomatic 17-month-old who passed eggs and an adult Macracanthorhynchus ingens worm, indicating parasite maturation and reproduction. Macracanthorhynchus ingens may have a greater capacity to mature in humans versus Macracanthorhynchus hirudinaceus.

SUBMITTER: Chancey RJ

PROVIDER: S-EPMC7856340 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Patent <i>Macracanthorhynchus ingens</i> Infection in a 17-Month-Old Child, Ohio.

Chancey Rebecca J RJ Sapp Sarah G H SGH Fox Mark M Bishop Henry S HS Ndubuisi MacKevin M de Almeida Marcos M Montgomery Susan P SP Congeni Blaise B

Open forum infectious diseases 20201223 2

Limited data exist on human Macracanthorhynchus infections. We report an asymptomatic 17-month-old who passed eggs and an adult Macracanthorhynchus ingens worm, indicating parasite maturation and reproduction. Macracanthorhynchus ingens may have a greater capacity to mature in humans versus Macracanthorhynchus hirudinaceus. ...[more]

PMID: 33553479

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Project description:Open-label, multicenter, randomized study (NCT00289913) evaluated immunogenicity, safety, and tolerability of Vaqta (hepatitis A vaccine) administered with PedvaxHIB (Haemophilus b conjugate vaccine [Meningococcal protein conjugate]) & Infanrix (diphtheria/tetanus/acellular pertussis vaccine) in healthy, 15-month-old children. Five groups were evaluated: Group 1 received Vaqta/Infanrix PedvaxHIB on Day-1 and Vaqta at Week-24; Group 2 received Infanrix PedvaxHIB on Day-1, Vaqta at Week-4, and Vaqta at Week-28; Group 3 received Vaqta/PedvaxHIB on Day-1 and Vaqta Week-24; Group 4 received PedvaxHIB on Day-1, Vaqta at Week-4, and Vaqta at Week-28; and Group 5 (safety only) received Vaqta on Day-1 and Vaqta at Week-24. Hepatitis A seropositivity rate (SPR: ≥10 mIU/mL), Hib capsular polyribosylribitol phosphate (PRP) antibody response (>1.0 μg/mL), and geometric mean titers (GMT) to pertussis toxin (PT), pertussis filamentous hemagglutinin antibody (FHA), and pertactin were examined. Non-inferiority statistical criteria required a difference >10% in Hepatitis A SPR, PRP >1.0 μg/mL, and a GMT ratio of >0.67 for pertussis antigens. Injection-site and systemic adverse events (AEs) and daily temperatures were collected. Hepatitis A SPRs were 100% for Groups 1-4, regardless of initial serostatus. Anti-PRP titers were comparable (98.1% - 97.0%) for Groups 1-4. GMT and mean fold-rise were comparable for all 3 pertussis antigen components between concomitant and nonconcomitant groups. Criteria for non-inferiority of immune responses for concomitant vs nonconcomitant administration were met for Hepatitis A, Hib, and pertussis antigens. No statistically significant incidence differences of individual AEs were found between concomitant and nonconcomitant groups. No serious vaccine-related AEs or deaths were reported; no subject discontinued due to an AE. Immune responses to Vaqta, PedvaxHIB, and Infanrix given concomitantly were non-inferior to nonconcomitant responses. Vaqta administered with PedvaxHIB & Infanrix had an acceptable safety profile in 15-month-old children.

Dataset Information

Patent Macracanthorhynchus ingens Infection in a 17-Month-Old Child, Ohio.

Publications

Patent <i>Macracanthorhynchus ingens</i> Infection in a 17-Month-Old Child, Ohio.

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