Shedding of porcine circovirus type 1 DNA and rotavirus RNA by infants vaccinated with Rotarix® mijatovicrustempasic2017shedding

This study investigated the shedding of porcine circovirus type 1 (PCV-1) DNA and Rotavirus group A (RVA) RNA in 33 infants aged approximately 2 months following the first dose of Rotarix® vaccine. Stool samples were collected serially post-vaccination and analyzed using molecular methods. The study found that 21% of infants did not shed RVA RNA beyond day 3, suggesting a lack of vaccine virus replication in some cases. The study was conducted in Atlanta, Georgia, and involved both full-term and preterm infants. The analysis used quantitative real-time RT-PCR and qPCR assays to detect viral RNA and DNA in stool samples.

Analytes

stool_rotavirus_vaccine

Detection of Rotarix® Rotavirus group A RNA in stool samples post-vaccination using qRT-PCR targeting the NSP3 gene of RVA.

gamma for stool_rotavirus_vaccine

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: rotavirus vaccine
Specimen: stool
Units: gc/mL
Gene target: NSP3
Participants: 33
Negative samples: 113
Positive samples (not quantifiable): 0
Quantifiable samples: 155
Limit of quantification: unknown
Limit of detection: unknown

stool_pcv1_dna

Detection of Rotarix® PCV-1 DNA in stool samples post-vaccination using qPCR.

exponential for stool_pcv1_dna

Fitted by censored maximum likelihood. The red line is the median individual; the shaded region is the full range of a simulated cohort drawn from the fitted population, so it shows what simulating from this dataset would produce rather than a confidence interval, with dashed lines at the central 95%. Open triangles are non-detects, drawn at the censoring limit and entering the fit as "below this value" rather than being dropped. See the modelling methods for what these estimates do and do not support.

Biomarker: rotavirus vaccine
Specimen: stool
Units: gc/mL
Participants: 33
Negative samples: 226
Positive samples (not quantifiable): 0
Quantifiable samples: 43
Limit of quantification: unknown
Limit of detection: unknown