Virus load and clinical features during the acute phase of Chikungunya infection in children.

BACKGROUND:Chikungunya virus (CHIKV) infection is a long known mosquito-borne disease that is associated with severe morbidity, characterized by fever, headache, rashes, joint pain, and myalgia. It is believed that virus load has relation with severity of clinical features. OBJECTIVES:We performed t...

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Main Authors: Siva Raghavendhar B, Ashok Kumar Patel, Sushil Kumar Kabra, Rakesh Lodha, Vinod H Ratageri, Pratima Ray
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0211036
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author Siva Raghavendhar B
Ashok Kumar Patel
Sushil Kumar Kabra
Rakesh Lodha
Vinod H Ratageri
Pratima Ray
author_facet Siva Raghavendhar B
Ashok Kumar Patel
Sushil Kumar Kabra
Rakesh Lodha
Vinod H Ratageri
Pratima Ray
author_sort Siva Raghavendhar B
collection DOAJ
description BACKGROUND:Chikungunya virus (CHIKV) infection is a long known mosquito-borne disease that is associated with severe morbidity, characterized by fever, headache, rashes, joint pain, and myalgia. It is believed that virus load has relation with severity of clinical features. OBJECTIVES:We performed this study to assess the relationship between virus load and clinical features in children during the acute phase of CHIKV infection, in order to draw insights for better-informed treatment. STUDY DESIGN:Between June 1, 2009, and May 31, 2010, 338 patients with fever and susceptive to CHIKV during first 4 days of illness were prospectively enrolled from Karnataka Institute of Medical Sciences, Hubli in our hospital based cross sectional observational study. Sybr green quantitative reverse transcription polymerase chain reaction was performed to estimate the virus load. RESULTS:Quantitative RT-PCR was positive for CHIKV in 54 patients. The median copy number of CHIKV was 1.3x 108 copies/ml (1.7x105-9.9x109 copies/ml). Among the observed clinical features, a statistically significant difference in log mean virus load was found between patients with and without myalgia (log mean 7.50 vs 8.34, P = 0.01). CONCLUSION:Patients with myalgia had lower virus load and those without myalgia had a higher virus load.
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spelling doaj.art-6ca58a97e0b0416a83265b70a3c533fd2022-12-21T22:51:17ZengPublic Library of Science (PLoS)PLoS ONE1932-62032019-01-01142e021103610.1371/journal.pone.0211036Virus load and clinical features during the acute phase of Chikungunya infection in children.Siva Raghavendhar BAshok Kumar PatelSushil Kumar KabraRakesh LodhaVinod H RatageriPratima RayBACKGROUND:Chikungunya virus (CHIKV) infection is a long known mosquito-borne disease that is associated with severe morbidity, characterized by fever, headache, rashes, joint pain, and myalgia. It is believed that virus load has relation with severity of clinical features. OBJECTIVES:We performed this study to assess the relationship between virus load and clinical features in children during the acute phase of CHIKV infection, in order to draw insights for better-informed treatment. STUDY DESIGN:Between June 1, 2009, and May 31, 2010, 338 patients with fever and susceptive to CHIKV during first 4 days of illness were prospectively enrolled from Karnataka Institute of Medical Sciences, Hubli in our hospital based cross sectional observational study. Sybr green quantitative reverse transcription polymerase chain reaction was performed to estimate the virus load. RESULTS:Quantitative RT-PCR was positive for CHIKV in 54 patients. The median copy number of CHIKV was 1.3x 108 copies/ml (1.7x105-9.9x109 copies/ml). Among the observed clinical features, a statistically significant difference in log mean virus load was found between patients with and without myalgia (log mean 7.50 vs 8.34, P = 0.01). CONCLUSION:Patients with myalgia had lower virus load and those without myalgia had a higher virus load.https://doi.org/10.1371/journal.pone.0211036
spellingShingle Siva Raghavendhar B
Ashok Kumar Patel
Sushil Kumar Kabra
Rakesh Lodha
Vinod H Ratageri
Pratima Ray
Virus load and clinical features during the acute phase of Chikungunya infection in children.
PLoS ONE
title Virus load and clinical features during the acute phase of Chikungunya infection in children.
title_full Virus load and clinical features during the acute phase of Chikungunya infection in children.
title_fullStr Virus load and clinical features during the acute phase of Chikungunya infection in children.
title_full_unstemmed Virus load and clinical features during the acute phase of Chikungunya infection in children.
title_short Virus load and clinical features during the acute phase of Chikungunya infection in children.
title_sort virus load and clinical features during the acute phase of chikungunya infection in children
url https://doi.org/10.1371/journal.pone.0211036
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