COVID-19 cases are now being identified primarily among unvaccinated individuals, according to data from the US Centers for Disease Control and Prevention (CDC). However, there has been increasing concern about so-called breakthrough infections among fully vaccinated individuals, particularly after the emergence of the SARS-CoV-2 Delta variant.
What is a breakthrough infection? The CDC defines it as “the infection of a fully vaccinated person.” The key finding remains that people with breakthrough infections are still far less likely to experience severe COVID-19 symptoms, in contrast with unvaccinated people; hence the importance of vaccination.
COVID-19 vaccine distribution efforts are underway in several countries. Recently, the Serum Institute of India celebrated the nationwide rollout of its Covishield vaccine, kicking off the country’s largest ever vaccination program. Meanwhile, many other vaccines against the coronavirus that causes COVID-19 are in either preclinical studies or clinical trials. At present, 19 vaccine candidates are in Phase 3 clinical trials, while 8 vaccines have been granted emergency use authorization (EUA) in at least one country.
When you look at our top 10 most viewed blog posts of 2020, there’s no surprise that all relate to COVID-19. We have come a long way since the beginning of the year, thanks to tireless scientists and researchers around the globe. They have led the way in COVID-19 research, treatment, and testing. Let’s take a closer look at this top 10 list:
10. Tips to Maintain Physical Distance in the Lab
The spread of COVID-19 forced us to adapt and adjust to new ways in life, in work, and for this blog post, in the lab. In response to the pandemic, some labs shut down completely. Others have stayed open, especially those involving coronavirus research. This post provides 10 helpful distancing tips for researchers to stay safe and productive while working in the lab.
9. Investigation of Remdesivir as a Possible Treatment for SARS-2-CoV (2019 nCoV)
Scientists have worked hard to determine possible treatment for COVID-19. This blog post focuses on Remdesivir (RDV or GS-5734), an encouraging treatment used for the first case in the United States. It provides an in-depth look at numerous studies and clinical trials on Remdesivir as treatment for COVID-19. One key finding is that RDV needed to be administered either before or shortly after infection to limit lung damage.
The global war against the coronavirus that causes COVID-19 rages on, spearheaded by efforts to develop effective and safe vaccines. At the time of writing, over 100 COVID-19 vaccine clinical trials were listed in the clinicaltrials.gov database. Recent attention has focused on mRNA vaccines developed by Pfizer/BioNTech and Moderna. If licensed, they would become the first mRNA vaccines for human use.
Developing a vaccine that is safe, effective, easily manufactured and distributed is a daunting task. Yet, that is exactly what is needed in response to the COVID-19 pandemic.
Vaccine development, safety and efficacy testing take time. The mumps vaccine is thought to be the quickest infectious disease vaccine ever produced, and its development required four years from sample collection to licensing (2). However, there are many reasons to anticipate quicker development for a COVID-19 vaccine: Researchers are collaborating in unprecedented ways, and most COVID-19 scientific publications are free for all to access and often available as preprints. As of August 11, 2020, researchers around the globe have more than 165 vaccine candidates in development, 30 of which are in some phase of human clinical trials (1). The range of vaccine formulations available to scientists has expanded to include RNA and DNA vaccines, replication-defective adenovirus vaccines, inactivated or killed vaccines and subunit protein vaccines. Equally important is that vaccine developers and researchers have greater access to powerful molecular biology tools like bioluminescent reporters that enable quicker testing and development.
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