Middle East Respiratory Syndrome Coronavirus Transmission in Extended Family, Saudi Arabia, 2014

Risk factors for human-to-human transmission of Middle East respiratory syndrome coronavirus (MERS-CoV) are largely unknown. After MERS-CoV infections occurred in an extended family in Saudi Arabia in 2014, relatives were tested by using real-time reverse transcription PCR (rRT-PCR) and serologic me...

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Published inEmerging infectious diseases Vol. 22; no. 8; pp. 1395 - 1402
Main Authors Arwady, M. Allison, Alraddadi, Basem, Basler, Colin, Azhar, Esam I., Abuelzein, Eltayb, Sindy, Abdulfattah I., Sadiq, Bakr M. Bin, Althaqafi, Abdulhakeem O., Shabouni, Omaima, Banjar, Ayman, Haynes, Lia M., Gerber, Susan I., Feikin, Daniel R., Madani, Tariq A.
Format Journal Article
LanguageEnglish
Published United States U.S. National Center for Infectious Diseases 01.08.2016
Centers for Disease Control and Prevention
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Abstract Risk factors for human-to-human transmission of Middle East respiratory syndrome coronavirus (MERS-CoV) are largely unknown. After MERS-CoV infections occurred in an extended family in Saudi Arabia in 2014, relatives were tested by using real-time reverse transcription PCR (rRT-PCR) and serologic methods. Among 79 relatives, 19 (24%) were MERS-CoV positive; 11 were hospitalized, and 2 died. Eleven (58%) tested positive by rRT-PCR; 8 (42%) tested negative by rRT-PCR but positive by serology. Compared with MERS-CoV-negative adult relatives, MERS-CoV-positive adult relatives were older and more likely to be male and to have chronic medical conditions. Risk factors for household transmission included sleeping in an index patient's room and touching respiratory secretions from an index patient. Casual contact and simple proximity were not associated with transmission. Serology was more sensitive than standard rRT-PCR for identifying infected relatives, highlighting the value of including serology in future investigations.
AbstractList Risk factors for human-to-human transmission of Middle East respiratory syndrome coronavirus (MERS-CoV) are largely unknown. After MERS-CoV infections occurred in an extended family in Saudi Arabia in 2014, relatives were tested by using real-time reverse transcription PCR (rRT-PCR) and serologic methods. Among 79 relatives, 19 (24%) were MERS-CoV positive; 11 were hospitalized, and 2 died. Eleven (58%) tested positive by rRT-PCR; 8 (42%) tested negative by rRT-PCR but positive by serology. Compared with MERS-CoV–negative adult relatives, MERS-CoV–positive adult relatives were older and more likely to be male and to have chronic medical conditions. Risk factors for household transmission included sleeping in an index patient’s room and touching respiratory secretions from an index patient. Casual contact and simple proximity were not associated with transmission. Serology was more sensitive than standard rRT-PCR for identifying infected relatives, highlighting the value of including serology in future investigations.
Risk factors for human-to-human transmission of Middle East respiratory syndrome coronavirus (MERS-CoV) are largely unknown. After MERS-CoV infections occurred in an extended family in Saudi Arabia in 2014, relatives were tested by using real-time reverse transcription PCR (rRT-PCR) and serologic methods. Among 79 relatives, 19 (24%) were MERS-CoV positive; 11 were hospitalized, and 2 died. Eleven (58%) tested positive by rRT-PCR; 8 (42%) tested negative by rRT-PCR but positive by serology. Compared with MERS-CoV-negative adult relatives, MERS-CoV-positive adult relatives were older and more likely to be male and to have chronic medical conditions. Risk factors for household transmission included sleeping in an index patient's room and touching respiratory secretions from an index patient. Casual contact and simple proximity were not associated with transmission. Serology was more sensitive than standard rRT-PCR for identifying infected relatives, highlighting the value of including serology in future investigations.Risk factors for human-to-human transmission of Middle East respiratory syndrome coronavirus (MERS-CoV) are largely unknown. After MERS-CoV infections occurred in an extended family in Saudi Arabia in 2014, relatives were tested by using real-time reverse transcription PCR (rRT-PCR) and serologic methods. Among 79 relatives, 19 (24%) were MERS-CoV positive; 11 were hospitalized, and 2 died. Eleven (58%) tested positive by rRT-PCR; 8 (42%) tested negative by rRT-PCR but positive by serology. Compared with MERS-CoV-negative adult relatives, MERS-CoV-positive adult relatives were older and more likely to be male and to have chronic medical conditions. Risk factors for household transmission included sleeping in an index patient's room and touching respiratory secretions from an index patient. Casual contact and simple proximity were not associated with transmission. Serology was more sensitive than standard rRT-PCR for identifying infected relatives, highlighting the value of including serology in future investigations.
Casual contact was not associated with transmission, and serologic methods were more sensitive than real-time reverse transcription-PCR. Risk factors for human-to-human transmission of Middle East respiratory syndrome coronavirus (MERS-CoV) are largely unknown. After MERS-CoV infections occurred in an extended family in Saudi Arabia in 2014, relatives were tested by using real-time reverse transcription PCR (rRT-PCR) and serologic methods. Among 79 relatives, 19 (24%) were MERS-CoV positive; 11 were hospitalized, and 2 died. Eleven (58%) tested positive by rRT-PCR; 8 (42%) tested negative by rRT-PCR but positive by serology. Compared with MERS-CoV–negative adult relatives, MERS-CoV–positive adult relatives were older and more likely to be male and to have chronic medical conditions. Risk factors for household transmission included sleeping in an index patient’s room and touching respiratory secretions from an index patient. Casual contact and simple proximity were not associated with transmission. Serology was more sensitive than standard rRT-PCR for identifying infected relatives, highlighting the value of including serology in future investigations.
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Author Sadiq, Bakr M. Bin
Shabouni, Omaima
Basler, Colin
Abuelzein, Eltayb
Banjar, Ayman
Azhar, Esam I.
Arwady, M. Allison
Haynes, Lia M.
Althaqafi, Abdulhakeem O.
Gerber, Susan I.
Feikin, Daniel R.
Alraddadi, Basem
Sindy, Abdulfattah I.
Madani, Tariq A.
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Issue 8
Keywords Saudi Arabia
infectious
viruses
RT-PCR
Middle East respiratory syndrome coronavirus
disease transmission
serologic tests
Language English
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Snippet Risk factors for human-to-human transmission of Middle East respiratory syndrome coronavirus (MERS-CoV) are largely unknown. After MERS-CoV infections occurred...
Casual contact was not associated with transmission, and serologic methods were more sensitive than real-time reverse transcription-PCR. Risk factors for...
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StartPage 1395
SubjectTerms Adolescent
Adult
Antibodies, Viral - blood
Causes of
Contact Tracing
Coronavirus Infections - epidemiology
Coronavirus Infections - transmission
Coronavirus Infections - virology
Disease transmission
Distribution
Family
Female
Health aspects
Humans
infectious
Male
Middle East respiratory syndrome
Middle East respiratory syndrome coronavirus
Middle East Respiratory Syndrome Coronavirus - isolation & purification
Middle East Respiratory Syndrome Coronavirus Transmission in Extended Family, Saudi Arabia, 2014
Real-Time Polymerase Chain Reaction
Reverse Transcriptase Polymerase Chain Reaction
Risk Factors
RT-PCR
Saudi Arabia - epidemiology
Serologic Tests
viruses
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Title Middle East Respiratory Syndrome Coronavirus Transmission in Extended Family, Saudi Arabia, 2014
URI https://www.ncbi.nlm.nih.gov/pubmed/27191038
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https://pubmed.ncbi.nlm.nih.gov/PMC4982159
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Volume 22
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