Research and effectiveness of anti-viral drugs against COVID-19; global public intervention to prevent coronavirus and to improve human health

Face masks: a COVID-19 protector or environmental contaminant?

Face masks, a prime component of personal protective equipment (PPE) items, have become an integral part of human beings to survive under the ongoing COVID-19 pandemic situation. The global population requires an estimated 130 billion face masks and 64 billion gloves/month, while the COVID-19 pandemic has led to the daily disposal of approximately 3.5 billion single-use face masks, resulting in a staggering 14,245,230.63 kg of face mask waste. The improper disposal of face mask wastes followed by its mismanagement is a challenge to the scientists as the wastes create pollution leading to environmental degradation, especially plastic pollution (macro/meso/micro/nano). Each year, an estimated 0.15-0.39 million tons of COVID-19 face mask waste, along with 173,000 microfibers released daily from discarded surgical masks, could enter the marine environment, while used masks have a significantly higher microplastic release capacity (1246.62 ± 403.50 particles/piece) compared to new masks (183.00 ± 78.42 particles/piece). Surgical face masks emit around 59 g CO2-eq greenhouse gas emissions per single use, cloth face masks emit approximately 60 g CO2-eq/single mask, and inhaling or ingesting microplastics (MPs) caused adverse health problems including chronic inflammation, granulomas or fibrosis, DNA damage, cellular damage, oxidative stress, and cytokine secretion. The present review critically addresses the role of face masks in reducing COVID-19 infections, their distribution pattern in diverse environments, the volume of waste produced, degradation in the natural environment, and adverse impacts on different environmental segments, and proposes sustainable remediation options to tackle environmental challenges posed by disposable COVID-19 face masks.

Reported Side Effects of COVID-19 Vaccination among Adults in Saudi Arabia: A Cross-Sectional Study

Background

The coronavirus disease 2019 (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2, is a major international crisis. Although vaccination is the only hope to end this pandemic, adverse effects attributable to vaccines are still being reported. Active surveillance is critical for generating near-real-time, high-quality evidence for potential safety hazards, allowing us to respond quickly to vaccination

Purpose

To investigate the prevalence of side effects following COVID-19 vaccination with Oxford–AstraZeneca among adults in northwestern Riyadh Province, Saudi Arabia.

Methods

This is a cross-sectional and community-based study performed among individuals who had received any type of COVID-19 vaccination. A convenience sampling method was used to collect data using an online survey.

Results

A total of 222 individuals responded to the survey, and the majority frequently reported both localized and systemic side effects after vaccination. The most reported side effects include pain at the site of injection, myalgia, headache, and fever. Some demographic factors were significantly associated with the reported post-vaccination side effects.

Conclusion

The most prevalent side effects experienced by individuals after receiving the COVID-19 vaccine were determined in this study. Prior to the administration of a vaccination, counseling programs should be established to help people understand and deal with the possible side effects, with a special focus on demographic differences.