Infrequent transmission of monovalent human rotavirus vaccine virus to household contacts of vaccinated infants in Malawi

  • Aisleen Bennett
  • , Louisa Pollock
  • , Khuzwayo C. Jere
  • , Virginia E. Pitzer
  • , Benjamin Lopman
  • , Umesh Parashar
  • , Dean Everett
  • , Robert S. Heyderman
  • , Naor Bar-Zeev
  • , Nigel A. Cunliffe
  • , Miren Iturriza-Gomara

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Horizontal transmission of rotavirus vaccine virus may contribute to indirect effects of rotavirus vaccine, but data are lacking from low-income countries. Serial stool samples were obtained from Malawian infants who received 2 doses of monovalent human rotavirus vaccine (RV1) (days 4, 6, 8, and 10 after vaccination) and from their household contacts (8-10 days after vaccine). RV1 vaccine virus in stool was detected using semi-quantitative real-time reverse-transcription polymerase chain reaction. RV1 fecal shedding was detected in 41 of 60 vaccinated infants (68%) and in 2 of 147 household contacts (1.4%). Horizontal transmission of vaccine virus within households is unlikely to make a major contribution to RV1 indirect effects in Malawi.

Original languageBritish English
Pages (from-to)1730-1734
Number of pages5
JournalJournal of Infectious Diseases
Volume219
Issue number11
DOIs
StatePublished - 1 Jun 2019

Keywords

  • Indirect effects
  • Malawi
  • Rotavirus
  • Transmission
  • Vaccine

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