scholarly journals Impact of RSV Coinfection on Human Bocavirus in Children with Acute Respiratory Infections

2018 ◽  
Vol 65 (4) ◽  
pp. 342-351 ◽  
Author(s):  
Huiming Sun ◽  
Jiyang Sun ◽  
Wei Ji ◽  
Chuangli Hao ◽  
Yongdong Yan ◽  
...  
Keyword(s):  
Respiratory Syncytial Virus ◽  
Clinical Features ◽  
Respiratory Infections ◽  
Human Bocavirus ◽  
Acute Respiratory Infections ◽  
Copy Numbers ◽  
Rsv Infection ◽  
Dna Copy Numbers ◽  
Syncytial Virus ◽  
Length Of Hospitalization

Abstract Objective The objective of this study was to assess epidemiological and clinical features of human bocavirus (HBoV) coinfection with other viruses. Method Children coinfected with HBoV between January 2012 and December 2014 were enrolled and retrospectively reviewed. Result A total of 984 patients were stratified into five groups: HBoV infection alone (n = 249), respiratory syncytial virus (RSV) infection alone (n = 649), HBoV coinfection with RSV (n = 28), with human rhinovirus (HRV) (n = 39) and with other virus (n = 19). Length of hospitalization was longer in HBoV coinfection with RSV group than HBoV (9.0 days vs. 7.0 days, p = 0.001), RSV (9.0 days vs. 8.0 days, p = 0.016) infection alone group. Pneumonia was more common in the HBoV coinfection with RSV group compared with the HBoV, RSV infection alone group, respectively (75.0% vs. 44.2%, 31.3%, p < 0.001). HBoV DNA copy numbers (383 000 copies/ml) were positively correlated with the length of hospitalization (r = 0.334, p < 0.001). Conclusion HBoV coinfection with RSV increases HBoV infection severity.

scholarly journals Seroepidemiology of respiratory syncytial virus infection in rural and semi-rural areas of the Littoral region of Cameroon

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Henshaw Mandi ◽  
Bekolo Cavin Epie ◽  
Agnes Eyoh ◽  
Sindhiya Jan ◽  
Sue Ann Costa Clemens ◽  
...  
Keyword(s):  
Risk Factors ◽  
Respiratory Syncytial Virus ◽  
Odds Ratio ◽  
Respiratory Infections ◽  
Enzyme Linked Immunosorbent Assay ◽  
Acute Respiratory Infections ◽  
Littoral Region ◽  
Health Centres ◽  
Rsv Infection ◽  
Syncytial Virus

Abstract Background The respiratory syncytial virus (RSV) has been established as a leading cause of acute lower respiratory illness (ALRI) in infants and children. In 2015, the global disease burden (GBD) study estimated that the overall RSV-ALRI mortality could be as high as 118,200, with most death occurring in low- and middle-incomes countries (LMIC). This study aimed to assess the burden of RSV infection among children less than 2 years with acute respiratory infections (ARI) in the Littoral region of Cameroon. Methods We carried out a cross-sectional study in seven health centres in the Littoral region of Cameroon. Venous blood was collected using serum separation tubes from eligible children who visited these health centres with acute respiratory infections. ELISA (Enzyme-linked immunosorbent assay) testing was used to assess the seroprevalence of anti-IgM RSV for the total population and by selected demographic and health parameters and potential risk factors. Results The overall RSV-associated ARI seroprevalence was 33% (95%CI:23.6–42.3; 33/100 children). The only demographic factor significantly associated with RSV acquisition was age of 6 months and below (odds ratio: 7.54 (2.62, 23.36); p = 0.000). Children who were clinically diagnosed to be concomitantly infected with malaria had a lower risk of RSV infection (odds ratio: 0.38 (0.14, 0.95; P = 0.03). Conclusions The RSV burden is high among children less than 2 years with ARI in the Littoral region of Cameroon. There is a need for an effective public health RSV surveillance system with standard laboratory techniques and equipment to better understand the RSV disease age-specific incidence, seasonality, risk factors and RSV burden among patients in communities in Cameroon.

scholarly journals Seroepidemiology of Respiratory Syncytial Virus infection in rural and semi-rural areas of the Littoral Region of Cameroon

2020 ◽  
Author(s):  
Henshaw Eyambe Mandi ◽  
Solomon Abebe Yimer ◽  
Cavin Epie Bekolo ◽  
Agnes Eyoh ◽  
Sindhiya Jan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Respiratory Syncytial Virus ◽  
Rural Areas ◽  
Odds Ratio ◽  
Respiratory Infections ◽  
Acute Respiratory Infections ◽  
Littoral Region ◽  
Elisa Testing ◽  
Rsv Infection ◽  
Syncytial Virus

Abstract Background: The respiratory syncytial virus (RSV) has been established as a leading cause of acute lower respiratory illness (ALRI) in infants and children. In 2015, the global disease burden (GBD) study estimated that the overall RSV-ALRI mortality could be as high as 118200, with most death occurring in low- and middle-incomes countries (LMICs). This study aimed to assess the burden of RSV infection among children less than two years with acute respiratory infections (ARI) in the littoral region of Cameroon.Methods: We carried out a cross-sectional study in seven health in the littoral region of Cameroon. Venous blood was collected using serum separation tubes from eligible children who visited these healthcare facilities with acute respiratory infections. ELISA testing was used to assess the seroprevalence of anti-IgM RSV for the total population and by selected demographic and health parameters and potential risk factors. Results: The overall RSV-associated ARI seroprevalence was 33% (95%CI:23.6-42.3; 33/100 children). The only demographic factor significantly associated with RSV acquisition was age of six months and below (odds ratio: 7.54 (2.62, 23.36); p=0.000). Children who were concomitantly infected with malaria had a lower risk of RSV infection (odds ratio: 0.38 (0.14, 0.95; P = 0.03). Conclusions: The RSV burden is high among children less than two years with ARI in the littoral region of Cameroon. There is a need for an effective public health RSV surveillance system with standard laboratory techniques and equipment to better understand the RSV disease age-specific incidence, seasonality, risk factors and RSV burden among patients in communities in Cameroon.

scholarly journals Seroepidemiology of respiratory syncytial virus infection in rural and semi-rural areas of the Littoral Region of Cameroon

2020 ◽  
Author(s):  
Henshaw Eyambe Mandi ◽  
Bekolo Cavin Epie ◽  
Agnes Eyoh ◽  
Sindhiya Jan ◽  
Sue Ann Costa Clemens ◽  
...  
Keyword(s):  
Risk Factors ◽  
Respiratory Syncytial Virus ◽  
Odds Ratio ◽  
Respiratory Infections ◽  
Acute Respiratory Infections ◽  
Littoral Region ◽  
Elisa Testing ◽  
Health Centres ◽  
Rsv Infection ◽  
Syncytial Virus

Abstract Background The respiratory syncytial virus (RSV) has been established as a leading cause of acute lower respiratory illness (ALRI) in infants and children. In 2015, the global disease burden (GBD) study estimated that the overall RSV-ALRI mortality could be as high as 118 200, with most death occurring in low- and middle-incomes countries (LMICs). This study aimed to assess the burden of RSV infection among children less than two years with acute respiratory infections (ARI) in the Littoral region of Cameroon. Methods We carried out a cross-sectional study in seven health centres in the Littoral region of Cameroon. Venous blood was collected using serum separation tubes from eligible children who visited these health centres with acute respiratory infections. ELISA testing was used to assess the seroprevalence of anti-IgM RSV for the total population and by selected demographic and health parameters and potential risk factors. Results The overall RSV-associated ARI seroprevalence was 33% (95%CI:23.6-42.3; 33/100 children). The only demographic factor significantly associated with RSV acquisition was age of six months and below (odds ratio: 7.54 (2.62, 23.36); p=0.000). Children who were clinically diagnosed to be concomitantly infected with malaria had a lower risk of RSV infection (odds ratio: 0.38 (0.14, 0.95; P = 0.03). Conclusions The RSV burden is high among children less than two years with ARI in the Littoral region of Cameroon. There is a need for an effective public health RSV surveillance system with standard laboratory techniques and equipment to better understand the RSV disease age-specific incidence, seasonality, risk factors and RSV burden among patients in communities in Cameroon.

scholarly journals Respiratory syncytial virus in severe lower respiratory infections in previously healthy young Ethiopian infants

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Abate Yeshidinber Weldetsadik ◽  
Frank Riedel
Keyword(s):  
Respiratory Syncytial Virus ◽  
Rainy Season ◽  
Clinical Laboratory ◽  
Respiratory Infections ◽  
Clinical Parameter ◽  
Imaging Data ◽  
Chi Square ◽  
Young Infants ◽  
Rsv Infection ◽  
Syncytial Virus

Abstract Background Respiratory Syncytial Virus (RSV) is the commonest cause of acute lower respiratory infections (ALRI) in infants. However, the burden of RSV is unknown in Ethiopia. We aimed to determine the prevalence, seasonality and predictors of RSV infection in young infants with ALRI for the first time in Ethiopia. Methods We performed RSV immuno-chromatographic assay from nasopharyngeal swabs of infants, 29 days to 6 months of age. We included the first 10 eligible infants in each month from June 2018 to May 2019 admitted in a tertiary pediatric center. Clinical, laboratory and imaging data were also collected, and chi-square test and regression were used to assess associated factors with RSV infection. Results Among a total of 117 study children, 65% were male and mean age was 3 months. Bronchiolitis was the commonest diagnosis (49%). RSV was isolated from 26 subjects (22.2%) of all ALRI, 37% of bronchiolitis and 11% of pneumonia patients. Although RSV infection occurred year round, highest rate extended from June to November. No clinical or laboratory parameter predicted RSV infection and only rainy season (Adjusted Odds Ratio (AOR) 10.46 [95%. C.I. 1.95, 56.18]) was independent predictor of RSV infection. Conclusions RSV was isolated in a fifth of young infants with severe ALRI, mostly in the rainy season. Diagnosis of RSV infection in our setting require specific tests as no clinical parameter predicted RSV infection. Since RSV caused less than a quarter of ALRI in our setting, the other causes should be looked for in future studies.

scholarly journals Development of a Rapid Fluorescent Immunochromatographic Test to Detect Respiratory Syncytial Virus

2018 ◽  
Vol 19 (10) ◽  
pp. 3013 ◽  
Author(s):  
Trinh Thuy Tien ◽  
Hyun Park ◽  
Hien Tuong ◽  
Seung-Taek Yu ◽  
Du-Young Choi ◽  
...  
Keyword(s):  
Respiratory Syncytial Virus ◽  
Rt Pcr ◽  
Immunochromatographic Strip ◽  
Copy Numbers ◽  
Rsv Infection ◽  
Immunochromatographic Strip Test ◽  
Polymerase Chain ◽  
Syncytial Virus ◽  
Strip Test ◽  
Europium Nanoparticles

Human respiratory syncytial virus (RSV) is one of the most common viruses infecting the respiratory tracts of infants. The rapid and sensitive detection of RSV is important to minimize the incidence of infection. In this study, novel monoclonal antibodies (mAbs; B11A5 and E8A11) against RSV nucleoprotein (NP) were developed and applied to develop a rapid fluorescent immunochromatographic strip test (FICT), employing europium nanoparticles as the fluorescent material. For the FICT, the limits of detection of the antigen and virus were 1.25 µg/mL and 4.23 × 106 TCID50/mL, respectively, corresponding to 4.75 × 106 ± 5.8 ×105 (mean ± SD) RNA copy numbers per reaction mixture for RSV NP. A clinical study revealed a sensitivity of 90% (18/20) and specificity of 98.18% (108/110) for RSV detection when comparing the performance to that of reverse transcription polymerase chain reaction (RT-PCR), representing a 15% improvement in sensitivity over the SD Bioline rapid kit. This newly developed FICT could be a useful tool for the rapid diagnosis of RSV infection.

scholarly journals Respiratory syncytial virus prevalence in children admitted to five Kenyan district hospitals: a cross-sectional study

2019 ◽  
Vol 3 (1) ◽  
pp. e000409
Author(s):  
Jacqueline Le Geyt ◽  
Stephanie Hauck ◽  
Mark Lee ◽  
Jennifer Mackintosh ◽  
Jessica Slater ◽  
...  
Keyword(s):  
Respiratory Syncytial Virus ◽  
Respiratory Infections ◽  
Cross Sectional Study ◽  
Single Centre ◽  
Cross Sectional ◽  
Virus Prevalence ◽  
District Hospitals ◽  
Positive Rate ◽  
Rsv Infection ◽  
Syncytial Virus

Acute respiratory infections (ARIs) are a leading cause of under-five mortality globally. In Kenya, the reported prevalence of respiratory syncytial virus (RSV) infections in single-centre studies has varied widely. Our study sought to determine the prevalence of RSV infection in children admitted with ARI fulfilling the WHO criteria for bronchiolitis. This was a prospective cross-sectional prevalence study in five hospitals across central and highland Kenya from April to June 2015. Two hundred and thirty-four participants were enrolled. The overall RSV positive rate was 8.1%, which is lower than in previous Kenyan studies. RSV-positive cases were on average 5 months younger than RSV-negative cases.

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