Disease/Infection News

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New model shows key role of innate immunity in controlling COVID-19 viral load

Since SARS-CoV-2 was identified in December 2019, researchers have worked feverishly to study the novel coronavirus. Although much knowledge has been gained, scientists still have a lot to learn about how SARS-CoV-2 interacts with the human body, and how the immune system fights it.

21 Jan 2021

New data on impact of spike mutations and B117 UK variant on neutralization by mAbs and sera

A recent paper by British and Dutch scientists, currently available on the bioRxiv* preprint server, shows that the neutralizing activity of monoclonal antibodies can be dramatically reduced by mutations of the SARS-CoV-2 spike glycoprotein – unlike polyclonal antibodies generated after natural infection that remain active regardless of any introduced amino acid changes.

21 Jan 2021

SARS-CoV-2 variants appear to arise independently of local transmission

Researchers at the University of Michigan in the United States have cautioned against only using within-host minor genetic variations to resolve the genomic epidemiology of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19).

21 Jan 2021

Pfizer-BioNTech vaccine shows reduced neutralization potential against SARS-CoV-2 B.1.1.7 spike variant

Researchers in the UK have conducted a study assessing the efficacy of the Pfizer-BioNTech COVID-19 vaccine BNT162b2 against the new variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19).

21 Jan 2021

Older age may offer a buffer against negative feelings brought on by the pandemic

Older adults are managing the stress of the coronavirus pandemic better than younger adults, reporting less depression and anxiety despite also experiencing greater general concern about COVID-19, according to a study recently published by researchers at the UConn School of Nursing.

21 Jan 2021

COVID-19, influenza and suicide are responsible for deaths of ICE detainees

Thirty-five people have died in the custody of U.S. Immigration and Customs Enforcement (ICE) since April 2018, with a seven-fold increase in deaths even as the average daily population decreased by nearly a third between 2019 and 2020, a new USC study shows.

21 Jan 2021

SARS-CoV-2 suppresses host innate immunity

SARS-CoV-2, the virus that causes COVID-19, blocks the processes of innate immune activation that normally direct the production and/or signaling of type I interferon (IFN-I) by the infected cell and tissues.

21 Jan 2021

FDA approves first injectable, complete regimen for HIV-1 infection in adults

The U.S. Food and Drug Administration today approved Cabenuva (cabotegravir and rilpivirine, injectable formulation) as a complete regimen for the treatment of human immunodeficiency virus type 1 (HIV-1) infection in adults to replace a current antiretroviral regimen in those who are virologically suppressed on a stable antiretroviral regimen with no history of treatment failure and with no known or suspected resistance to either cabotegravir or rilpivirine.

21 Jan 2021

Study: COVID-19 is dangerous not only for the elderly but for middle-aged adults

COVID-19 has been spreading rapidly over the past several months, and the U.S. death toll has now reached 400,000.

21 Jan 2021

Researchers use SARS-CoV-2 to bioengineer universal vaccine platform

Using SARS-CoV-2, a team of scientists from the United States has recently developed a bioengineered bacteriophage T4 nanoparticle structure using CRISPR technology that can be used as a universal platform to produce vaccines.

21 Jan 2021

New SARS-CoV-2 strain detected in Southern California, USA

By analyzing throat and nose swabs from patients in Southern California, researchers detected a new SARS-CoV-2 strain with mutations in the spike protein. This major finding may explain a surge in the number of cases in the region.

21 Jan 2021

Vitamin D deficiency associated with higher risk of COVID-19 hospitalization

A new study published shows that low levels of vitamin D are associated with a higher risk of COVID-19 hospitalization.

21 Jan 2021

High factor V levels linked to lymphopenia and weakened immunity in severe COVID-19

A new study suggests that factor V, a coagulation factor, is upregulated in a range of white blood cells in severe COVID-19. This increase is linked to the observed coagulopathy, lymphopenia and suppression of adaptive immunity in such patients.

21 Jan 2021

Blood group associated with cardiovascular events in COVID-19 patients

An illuminating new study by scientists at Harvard Medical School, USA, describes the correlation of such conditions with the ABO blood group. The team's findings may help assess the risk of COVID-19 patients for such complications, promoting early diagnosis and underscoring potential needs for preventive and therapeutic care where possible.

21 Jan 2021