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Serological Study of An Imported Case of Middle East Respiratory Syndrome and His Close Contacts in China, 2015

Wen Ling Wang1, Hui Juan Wang1, Yao Deng1

  • 1Key Laboratory of Medical Virology and Virus Disease, National Health and Family Planning Commission of the People's Republic of China; National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.

Biomedical and Environmental Sciences : BES
|April 26, 2016
PubMed

Insights

The first Middle East respiratory syndrome (MERS) case in China showed antibody development. Close contacts did not develop MERS-CoV antibodies, indicating no MERS transmission occurred.

Area of Science:

  • Virology
  • Immunology
  • Epidemiology

Background:

  • The Middle East respiratory syndrome-coronavirus (MERS-CoV) poses a significant public health threat.
  • Understanding MERS-CoV transmission dynamics is crucial for effective control strategies.

Observation:

  • The first imported MERS case in China was identified in May 2015.
  • Antibody kinetics (IgG, IgM, neutralizing) were analyzed in the MERS patient before discharge.
  • Paired serum samples from 53 close contacts were tested for MERS-CoV antibodies.

Findings:

  • The MERS patient exhibited expected antibody responses.
  • No seroconversion was detected in any of the 53 close contacts via IgG antibody enzyme-linked immunosorbent assay (ELISA).

Implications:

  • These findings suggest limited MERS-CoV transmission potential from this imported case.
  • No evidence of community or nosocomial MERS-CoV spread was observed in China.
  • Further surveillance may be warranted to monitor MERS-CoV importation and potential transmission events.

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