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Immune response variations across the COVID-19 spectrum

A new study published on the preprint server medRxiv in June 2020 describes differences in the adaptive and innate immune response in mild, moderate, and severe COVID-19. This may mean that permanent immune responses occur only in patients who recover from severe COVID-19.

25 Jun 2020

Exposure to SARS-CoV-2 can induce virus-specific T cell responses without seroconversion

A new study by researchers at Strasbourg University Hospital and published on the preprint server medRxiv* in June 2020 shows that COVID-19 antibody responses may sometimes be lacking following exposure to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This could lead to a significant underestimation of the number of infections and the number of individuals who have achieved immunity.

24 Jun 2020

SARS-CoV-2 induces broad T cell response in recovering patients

A new study published on the preprint server bioRxiv in June 2020 shows that T cell responses in COVID-19 patients are broader and more robust in severe disease and are explicitly directed against spike, memory, and ORF3a proteins.

23 Jun 2020

Growth, adaptation and neutralization of SARS-CoV-2 with acute-phase serum

One recent study published on the preprint server bioRxiv in June 2020 reports the results of growing and characterizing the virus, as well as the development of neutralizing antibodies in the serum of acutely infected hospitalized patients with COVID-19.

22 Jun 2020

Reassuring news on the Oxford vaccine (AZD1222) against SARS-CoV-2

A new paper from the UK vaccine research group, currently available on the bioRxiv preprint server, reveals that a single dose of ChAdOx1 nCoV-19 (AZD1222) can induce antigen-specific antibody and T cells responses against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and a booster shot additionally enhances antibody production with an increase in neutralizing titers – particularly in pigs.

22 Jun 2020

The role of brain cells in spreading HIV

Dr. Lena Al-Harthi speaks to News-Medical about her research into HIV treatment and the role of brain cells in spreading the HIV virus.

22 Jun 2020

Balanced B and T cell response required to control SARS-CoV-2

A new study by researchers in the Netherlands and published on the preprint server bioRxiv in June 2020 describes the differences in T and B cell responses seen in patients with severe COVID-19.

21 Jun 2020

Exposure to certain e-cig cartridges may cause fatal lung damage

Researchers at the University of Rochester Medical Center, New York, have shown that long-term exposure to certain electronic nicotine delivery systems (ENDS) may cause lung toxicity and injury among vapers.

16 Jun 2020

Females mount stronger T-cell response to SARS-CoV-2

A new study published on the preprint server medRxiv in June 2020 shows that immune cells, antibody levels, cytokine levels, and viral loads contribute to the sex difference seen in response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

10 Jun 2020

Researchers evaluate survivin expression in neuroendocrine tumors

Volume 11, Issue 23 of @Oncotarget reported that tissue microarrays of 132 patients were stained for survivin using immunohistochemistry and correlated with outcomes.

10 Jun 2020

Specific immune signature identified in COVID-19 patients

Researchers at King’s College London and collaborators have identified an “immune signature” that could help researchers better understand coronavirus disease 2019 (COVID-19) and serve as a valuable resource for predicting patient prognosis and informing clinical risk-based stratification.

10 Jun 2020

New strategy may facilitate development of multi-epitope peptide vaccine against SARS-CoV-2

By combining T and B lymphocyte analysis with manufacturability heuristic, researchers from the US and Germany proposed a set of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine peptides to use in subsequent animal studies and clinical trials. Their paper is currently available on the bioRxiv preprint server.

7 Jun 2020

Specific immune suppression leads to severe COVID-19 disease

A new study published online on the preprint server medRxiv in May 2020 reports that specific changes in the way the human immune system responds to COVID-19 determine whether the individual develops moderate or severe illness.

2 Jun 2020

Ludwig Cancer Research study profiles immune landscape of brain tumors

A Ludwig Cancer Research study has profiled, in a sweeping comparative analysis, the distinct immune landscapes of tumors that arise in the brain, or gliomas, and those that metastasize to the organ from the lungs, breast and skin.

28 May 2020

Many different T cell receptors recognize SARS-CoV-2 antigenic sites

The global COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is spreading over the world. However, not much is known about how the adaptive immune response kicks in following the viral challenge. This knowledge is crucial to predicting the efficacy of a vaccine and estimating the chances of reinfection.

26 May 2020

Do parasites protect against SARS-CoV-2?

The world has rarely seen such a readily transmissible infection as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) over the last century. Within five months, the virus has created a Tsunami of COVID-19 positive cases, comprising almost 4.88 million people and causing 322,000 deaths.

19 May 2020

First cellular immunology data to help guide social distancing recommendations

Scientists around the world are racing to develop a vaccine to protect against COVID-19 infection, and epidemiologists are trying to predict how the coronavirus pandemic will unfold until such a vaccine is available.

15 May 2020

A 'window of vulnerability' for re-infection with HIV after stem cell transplantation

Some people with HIV need to undergo an allogeneic stem cell transplantation in order to treat different types of blood cancer. Most of the patient's immune cells are eliminated during these transplantations.

14 May 2020

Does HIV infection increase the severity of COVID-19?

A new study by researchers at the New York University Grossman School of Medicine and published on the preprint server medRxiv* in May 2020 reports that being infected with HIV at the time of acquiring COVID-19 does not significantly increase the severity of illness or the risk of complications.

13 May 2020

Could JAK blockers help treat COVID-19?

A new study published in the journal Science Immunology in May 2020 reports that compounds that safely inhibit the JAK protein could be useful in treating COVID-19.

12 May 2020