Background and Aims Scientists and healthcare workers have expressed their concerns on the impacts of the COVID‐19 pandemic on vaccination coverage in children and adolescents. Therefore, we aimed to systematically review the studies addressing this issue worldwide. Methods We conducted a systematic search of relevant studies using the keywords on databases of PubMed, Web of Science, and Cochrane on May 22, 2021. The identified records were imported into EndNote software and underwent a two‐phase screening process consisting of title/abstract and full‐text screenings against inclusion criteria. The data of the included studies were summarized into a table and the findings were analyzed in a systematic approach. Results From 26 eligible studies, 21 studies demonstrated decreased vaccination rates in the children during the COVID‐19 pandemic, while three studies found increased or no significant changes only in influenza vaccination. The two remaining studies from Brazil and Sweden also showed no significant changes in vaccination rates in the children during the pandemic. Conclusion Most of the reports worldwide reported a decline or delay in vaccination at the time of the COVID‐19 pandemic. A sustained catch‐up program seems to be necessary, especially in low‐income countries, to avoid any vaccine dose missing. Facilitating the vaccination process is recommended, such as decreasing the waiting time for vaccination at the health center, addressing the fear and concerns related to COVID infection for parents, and enhancing vaccine availability, and promoting access in remote areas. Countries should ensure proper vaccination to prevent future pandemics related to vaccine‐preventable diseases.
Introduction COVID-19 vaccines emerged as a worldwide hope to contain the pandemic. However, many people are still hesitant to receive these vaccines. We aimed to systematically review the public knowledge, perception, and acceptability of COVID-19 vaccines in the Middle East and North Africa (MENA) countries and the predictors of vaccine acceptability in this region. Methods We systematically searched databases of PubMed, Scopus, Web of Science, and Cochrane and retrieved all relevant studies by 5 August 2021. Results There was a considerable variation in the COVID-19 vaccine acceptance rates, from 12% in a study from Israel to 83.3% in Kuwait, although two other studies from Israel mentioned 75% and 82.2% acceptability rates. Concerns about the side effects and safety of the vaccine were the main reasons for the lack of acceptability of taking the vaccine, which was reported in 19 studies. Conclusion Several factors, such as age, gender, education level, and comorbidities, are worthy of attention as they could expand vaccine coverage in the target population.
Background Oxygenation serves as a cornerstone in the treatment of COVID-19, and several methods have been extensively studied so far. Herein, we aimed to systematically review the studies discussing hyperbaric oxygen therapy (HBOT) to examine its reported efficacy and adverse events in patients with COVID-19. Methods We systematically searched and retrieved the relevant articles using keywords on the online databases, including PubMed, Scopus, Embase, Web of Science, and Cochrane databases up to April 11th, 2021. The retrieved records underwent a two-step title/abstract and full-text screening process, and the eligible papers were identified. National Institutes of health (NIH) quality assessment tool was used for this study. This study was registered in the International Prospective Register of Systematic Reviews (PROSPERO) with ID CRD42021269821. Results Eight articles from three countries were included. All the included studies had good and fair quality scores, with no poor studies included in this systematic review (Good: n = 5, Fair: n = 3). Studies were divided into clinical trials and case reports/series. Most of the studies used HBOT less than 1.5–2 absolute atmospheres (ATA) for 90 min sessions and thereafter sessions were decreased to 60 min. Trials demonstrated most of the patients recovered after receiving HBOT, and blood oxygen saturation increased after several sessions of HBOT. Conclusion Overall, HBOT seems to be a safe and effective oxygenation method in patients with COVID-19. However, there is limited knowledge and evidence regarding the effects and mechanism of HBOT in COVID-19 treatment, and further evaluations require extensive well-designed studies.
Introduction Several reports previously described mucormycosis co‐infection in patients with COVID‐19. As mucormycosis and COVID‐19 co‐infection might adversely affect patients' outcomes, we aimed to systematically review the related evidence and the subsequent outcomes. Methods We conducted a systematic review of relevant articles searching the keywords in the online databases of PubMed, Scopus, Embase, Cochrane, and Web of Science. All the records from the start of the pandemic until June 12th, 2021 underwent title/abstract and then full‐text screening process, and the eligible studies were included. We did not include any language or time restrictions for the included studies. Results We found 31 eligible studies reporting 144 total cases of COVID‐19 and mucormycosis co‐infection. The nose, cranial sinuses, and orbital cavity were the most commonly involved organs, although the cerebrum, lungs, and heart were also involved in the studies. Pre‐existing diabetes mellitus (DM), as well as corticosteroid use, were the most commonly identified risk factors, but other underlying conditions and immunomodulatory drug use were also present in several cases. Aspergillus was the most commonly reported micro‐organism that caused further co‐infections in patients with concurrent COVID‐19 and mucormycosis. As most of the studies were case reports, no reliable estimate of the mortality rate could be made, but overall, 33.6% of the studied cases died. Conclusion Early diagnosis of mucormycosis co‐infection in COVID‐19 patients and selecting the right treatment plan could be a challenge for physicians. Patients with underlying co‐morbidities, immunocompromised patients, and those receiving corticosteroids are at higher risk of developing mucormycosis co‐infection and it is crucial to have an eye examination for early signs and symptoms suggesting a fungal infection in these patients.
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