COVID-Somnia: the relationship between COVID-19 and insomnia
Researchers explored the links between COVID-19 and sleep disorders such as insomnia using a thorough literature review. // 16.2.2022
Corona in general
Canadian study estimates incidence rate of reinfection in healthcare workers
Researchers from various Canadian institutions document all cases of reinfection discovered during the first year of the project. // 15.2.2022
Study suggests folic acid supplementation linked to increased risk for COVID-19 diagnosis
In a recent study posted to the medRxiv* preprint server, researchers evaluated if folic acid or methotrexate use impacts the risk of coronavirus disease 2019 (COVID-19) diagnosis or associated mortality in the United Kingdom (UK). // 15.2.2022
Cardiovascular markers for predicting clinical outcomes in SARS-CoV-2 infection
In a recent study posted to the medRxiv* preprint server, an interdisciplinary team of researchers from Toronto, Canada, characterized the markers of endothelial function and developed micro ribonucleic acid (miRNA) expression atlas in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-positive and -negative patients admitted to the intensive care unit (ICU). // 15.2.2022
Higher Estrogen Levels May Protect Against COVID-19 Death
Postmenopausal women on hormone replacement therapy had lower risk of severe outcomes // 14.2.2022
The Truth About Lockdowns: Refuting the ‘No Benefit’ Study
F. Perry Wilson highlights the problems with this media-hyped study about COVID lockdowns and mortality, starting with how "lockdown" was defined. // 14.2.2022
Study demonstrates associations between COVID-19 symptom presentation and antibody assay reactivity
Researchers tested convalescent sera from individuals who had recovered from SARS-CoV-2 infection to demonstrate an association between antibody response and reported COVID-19 symptoms. // 14.2.2022
Case study: COVID-19 preventive behaviors impacted by implicit social pressure, desire for normalcy
As we move into the third year of the COVID-pandemic, we still face a multitude of information and it can be hard to know what guidelines to follow. // 10.2.2022
Unavailability of COVID-19 testing linked to greater intentions to engage in risky behavior
A research survey of more than 1,100 people in the United States found that when COVID-19 testing wasn't available in their community, participants showed significantly greater intentions to engage in risky behavior, possibly leading to increased transmission of the virus. // 10.2.2022
Excess COVID-19 mortality in Eastern Europe linked to lower vaccination rates and weak implementation of regulations
Researchers assessed the association between excess COVID-19 mortalities with vaccination rate, and regulation enforcement, in Eastern European countries that witnessed high COVID-19 mortalities throughout 2021. // 10.2.2022
Association between SARS-CoV-2 infection and several key respiratory and non-respiratory complications
Researchers assessed the intensity of association between SARS-CoV-2 infection and risks of various respiratory and non-respiratory complications. // 9.2.2022
How SARS-CoV-2 infection progresses throughout the respiratory system
Researchers discuss the progression of SARS-CoV-2 infection throughout the respiratory epithelium. // 9.2.2022
Study suggests hospitalized COVID-19 patients are at higher risk of neurocognitive decline
In a new study, scientists have evaluated patient-reported and clinically tested neuropsychological problems in both ambulatory (outpatients) and hospitalized COVID-19 patients during the early recovery phase. // 8.2.2022
SARS-CoV-2 infects, replicates, elevates angiotensin II and activates immune cells in human testes
Although much has been published since the first cases of COVID-19, there remain unanswered questions regarding SARS-CoV-2 impact on testes and the potential consequences for reproductive health. We investigated testicular alterations in deceased COVID-19-patients, the precise location of the virus, its replicative activity, and the molecules involved in the pathogenesis. We found that SARS-CoV-2 testicular tropism is higher than previously thought and that reliable viral detection in the testis requires sensitive nanosensoring or RT-qPCR using a specific methodology. // 8.2.2022
Covid-19: Past infection may not protect against future variants, researcher warns
Past infection with covid-19 does not necessarily confer protection against future infection, especially when it comes to the delta and omicron variants, researchers have warned. Wendy Barclay, head of infectious disease at Imperial College London, told an event organised by the Zoe study group1 on 3 February, “Each variant is different from the starting virus, but it’s not necessarily a linear difference. If you can picture in three dimensional space the original Wuhan one sitting in the middle—some of the other variants have sort of gone out from Wuhan but in different directions. The two that are most different from each other are delta and omicron.” She said people who think their past infection will give them good protection against future variants may be … // 7.2.2022
Study shows chronic alcohol consumption as a potential risk factor for SARS-CoV-2-infection
In a study posted to the bioRxiv* preprint server, a team of researchers from Germany studied the expression data of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection-relevant genes such as angiotensin-converting enzyme 2 (ACE2), transmembrane serine protease 2 (TMPRSS2), and the G-protein coupled receptor Mas in an alcohol-exposed rodent model infected with SARS-CoV-2. // 7.2.2022
Study links COVID-19 inflammatory manifestations in brain lysates to Alzheimer’s Disease markers
In a new study, researchers investigated a link between the body’s inflammatory response to SARS-CoV-2 infection within the neuropathological pathways and tau hyperphosphorylation. // 7.2.2022
Innate immune processes involved in SARS-CoV-2 recognition and resultant inflammation
A new article reviewed the innate immune detection and signaling pathways that the host uses against SARS-CoV-2. // 7.2.2022
Women, smokers and drinkers more likely to develop taste or smell disorders from COVID
Researchers investigate the relationship between TSD and COVID-19. // 6.2.2022
Many COVID-19 patients still contagious after five days
A new study shows that a high proportion of individuals still test positive for SARS-CoV-2 infection using RATs after five days of quarantine. // 6.2.2022
Dizziness is a common symptom of COVID-19
New research published in Internal and Emergency Medicine discusses the relationship between SARS-CoV-2 infection and dizziness. // 6.2.2022
Occurrence of relative bradycardia and relative tachycardia in individuals diagnosed with COVID-19
Background: The COVID-19 disease caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS- CoV-2) has become one of the worst global pandemics of the century causing tremendous human and economic suffering worldwide. While considered a respiratory disease, COVID-19 is known to cause cardiac complications. // 3.2.2022
Researchers suggest that visible blue light is a safe and variant-agnostic therapy against SARS-CoV-2
In a new study, researchers showed that 425 nm blue light can inactivate all major SARS CoV 2 variants. // 4.2.2022
The impact of the strict 112-day lockdown in Melbourne, Australia
Scientists recently evaluated the impact of 112-day strict lockdown implemented in Melbourne, Australia, to control the transmission of SARS-CoV-2. // 3.2.2022
Why Do Some People Escape Infection That Sickens Others?
The reason some people are seemingly unaffected by illness that impairs others is a great mystery of infectious disease, but answers to this question can unlock new therapies to curb outbreaks. // 3.2.2022
Many Adults Who Thought They Had COVID-19 Actually Didn't
But of those with confirmed cases, SARS-CoV-2 antibodies still seen at a median 9 months // 3.2.2022
Older adults have greatest stroke risk in the first three days after COVID-19 diagnosis
The risk of stroke among older adults diagnosed with COVID-19 was highest within the first three days of diagnosis, according to preliminary research to be presented at the American Stroke Association's International Stroke Conference 2022, a world premier meeting for researchers and clinicians dedicated to the science of stroke and brain health to be held in person in New Orleans and virtually, Feb. 8-11, 2022. // 3.2.2022
Analysis of SARS-CoV-2 Omicron variant-associated travel restrictions worldwide
Researchers evaluate the travel restrictions placed by nations worldwide following the emergence of the SARS-CoV-2 Omicron variant.
Study discovers how long-term memory T cells are formed after SARS-CoV-2 exposure
Exposure to SARS-CoV-2 by infection or vaccination generates immune cells that provide long-term immunity. These long-lived memory T cells play a key role in preventing severe cases of Covid-19. Researchers at the University of Zurich have now discovered how these memory T cells form. // 2.2.2022
Safety, tolerability and viral kinetics during SARS-CoV-2 human challenge
To establish a novel SARS-CoV-2 human challenge model, 36 volunteers aged 18-29 years without evidence of previous infection or vaccination were inoculated with 10 TCID50 of a wild-type virus (SARS-CoV-2/human/GBR/484861/2020) intranasally. // 1.2.2022