respiratory tract infection
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2022 ◽  
Author(s):  
Giuseppe Lippi ◽  
Camilla Mattiuzzi ◽  
Brandon M. Henry

Abstract Background: Since preliminary evidence suggests that the new SARS-CoV-2 Omicron (B.1.1.529) variant may cause different symptoms and trigger outbreaks associated with less severe illness compared to previous strains, we conducted and infodemic analysis to verify these suppositions.Methods: We searched Google Trends using the most frequent COVID-19 symptoms, with “United Kingdom” country option and search periods “20-26 December 2020” (predominance of Alpha variant) and “19-25 December 2021” (Omicron prevalence >80%).Results: Seven symptoms (i.e., conjunctivitis, chills, cough, aches, fever, nausea and sore throat) appeared to be more searched in 2021 compared to 2020 (i.e., >15% increase), five symptoms (i.e., anosmia, tiredness, ageusia, sneezing and shortness of breath) were found to be less searched in 2021 compared to 2020 (i.e., >15% decrease), whilst the number of Google searches for headache, diarrhea and runny nose were almost comparable between the two periods (i.e., <15% variation).Conclusion: Actual predominance of Omicron (B.1.1.529) variant in UK is associated with higher number of Google searches for mild symptoms (conjunctivitis, chills, cough, aches and fever), accompanied by considerable lower interest for a severe clinical sign like shortness of breath, which characterizes lower respiratory tract infection.


2022 ◽  
Author(s):  
xiaojian cui ◽  
Wei Guo ◽  
Lihua Zhao ◽  
Tongqiang Zhang ◽  
Jiafeng Zheng ◽  
...  

Abstract Background. Plastic bronchitis (PB) is a pulmonary disease characterized by the formation of bronchial casts (BCs) that lead to airway blockage. The study aimed to investigate the clinical features of PB related to respiratory tract infection. Methods. A retrospective analysis was performed on data collected over a 5-year period (from January 2015 to December 2019) on children with PB (n=269). The clinical manifestations, laboratory data, imaging findings and management, were investigated. The single fiberoptic bronchoscopy (FOB, n=144) and multiple-treatment groups (n=125) were compared.Results. A total of 269 PB children were included with a mean age of 6.7 ± 2.8 years. The majority of cases (n=241, 89.6%) were diagnosed with Mycoplasma pneumonia (MP) infection. The mean duration of fever and hospitalization was 10.6 ± 3.7 and 9.3 ± 3.2 days, respectively. All patients presented with cough and fever, 62 (23.0%) suffered from hypoxemia, and 144 (53.5%) had extrapulmonary complications. Higher levels of ESR, CRP, PCT, IL-6, LA, LDH, FER and D-dimer were observed. CT findings, including pulmonary consolidation, segmental or lobar atelectasis, pleural effusion and pleural thickening, were observed in 97.4%, 46.5%, 47.9% and 63.2% of cases, respectively. Furthermore, multivariate logistic regression analysis showed that N% >75.5%, LDH >598.5U/L, and D-dimer>1.2mg/L were independent risk factors for multiple therapeutic FOB. Conclusions. MP is a major pathogen responsible for PB in children. Patients with PB are more likely to experience persistent fever and excessive inflammation and have severe radiological findings. FOB is an effective treatment for patients with PB, and children may require multiple FOBs for cast removal. N% >75.5%, LDH >598.5U/L and D-dimer > 1.2mg/L are independent predictors of multiple FOB treatment.


2022 ◽  
Author(s):  
Nelufa Begum ◽  
Abdullah Al Tarique ◽  
Tamara Blake ◽  
Dwan Vilcins ◽  
Mohammad Zahirul Islam ◽  
...  

Background Cystic fibrosis (CF) is a genetic disorder in which the respiratory system gets clogged with mucus leads to progressive lung damage. There is no known cure for CF but several treatments to manage symptoms and reduce complications. Vitamin D deficiency is common in CF associated with increased infection and inflammation. This systematic review and meta analysis will evaluate the effectiveness of vitamin D treatment in reducing respiratory tract infection and inflammation in patients with CF. Methods Randomized and quasi randomised studies in CF patients with control groups will be identified. The antibacterial activity of vitamin D supplementation will help in reducing respiratory tract infection and inflammation in CF. Overall effects of vitamin D in terms of infection and inflammatory markers such as C reactive protein, inflammatory cytokine interleukin (IL)6, IL8, IL17, IL23, antimicrobial peptide (LL37), lung function defined by forced expiratory volume in 1 second (FEV1)%, other assessed respiratory parameters will be calculated using random-effect models. Study quality will be assessed using RoB 2, A revised Cochrane Risk of Bias tool for randomised trials. The overall quality of evidence for each outcome will be summarised according to the Grading of Recommendations Assessment, Development, and Evaluations (GRADE) framework.


BMJ ◽  
2021 ◽  
pp. e068037
Author(s):  
Haroon Ahmed ◽  
Heather Whitaker ◽  
Daniel Farewell ◽  
Julia Hippisley-Cox ◽  
Simon Noble

Abstract Objective To estimate the association between untreated, community acquired, respiratory tract infections and bleeding in oral anticoagulant users. Design Self-controlled case series. Setting General practices in England contributing data to the Clinical Practice Research Datalink GOLD. Participants 1208 adult users of warfarin or direct oral anticoagulants with a general practice or hospital admission record of a bleeding event between January 2010 and December 2019, and a general practice record of a consultation for a community acquired respiratory tract infection for which immediate antibiotics were not prescribed (that is, untreated). Main outcome measures Relative incidence of major bleeding and clinically relevant non-major bleeding in the 0-14 days after an untreated respiratory tract infection, compared to unexposed time periods. Results Of 1208 study participants, 58% (n=701) were male, median age at time of first bleed was 79 years (interquartile range 72-85), with a median observation period of 2.4 years (interquartile range 1.3-3.8). 292 major bleeds occurred during unexposed time periods and 41 in the 0-14 days after consultation for a respiratory tract infection. 1003 clinically relevant non-major bleeds occurred during unexposed time periods and 81 in the 0-14 days after consultation for a respiratory tract infection. After adjustment for age, season, and calendar year, the relative incidence of major bleeding (incidence rate ratio 2.68, 95% confidence interval 1.83 to 3.93) and clinically relevant non-major bleeding (2.32, 1.82 to 2.94) increased in the 0-14 days after an untreated respiratory tract infection. Findings were robust to several sensitivity analyses and did not differ by sex or type of oral anticoagulant. Conclusions This study observed a greater than twofold increase in the risk of bleeding during the 0-14 days after an untreated respiratory tract infection. These findings have potential implications for how patients and clinicians manage oral anticoagulant use during an acute intercurrent illness and warrant further investigation into the potential risks and how they might be mitigated.


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