Respiratory Disease News and Research

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Study: Genetically edited form of herpes simplex virus outperforms leading vaccine candidate

A genetically edited form of a herpes simplex virus -- rewired to keep it from taking refuge in the nervous system and eluding an immune response -- has outperformed a leading vaccine candidate in a new study from the University of Cincinnati, Northwestern University and the University of Nebraska-Lincoln.

6 Nov 2020

Furin cleavage site and D614G on SARS-CoV-2 spike evolved to balance infectivity, stability, cytopathicity

SARS-CoV-2 is the causative agent of COVID-19 disease, currently raging across the world. The virus has now infected more than 43.89 million individuals and claimed over 1.16 million lives. The study titled, "Spike glycoprotein and host cell determinants of SARS-CoV-2 entry and cytopathic effects," is released on the preprint server bioRxiv* in October 2020.

27 Oct 2020

Simple method provides real-time surveillance to control the spread of drug-resistant gonorrhea

A dual therapy treatment regimen of expanded-spectrum cephalosporins (ESCs) plus azithromycin (AZM) is the recommended standard of care for gonorrhea.

27 Oct 2020

"Immunological imprinting" could influence antibody response to COVID-19

Researchers in the United States and Spain have shown that prior exposure to seasonal coronaviruses may influence antibody responses to infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the causative agent of coronavirus disease 2019 (COVID-19).

21 Oct 2020

The connection between severe COVID-19 and white blood cell counts

However, in other research, white blood cells' exact roles and subtypes in severe COVID-19 are still unclear. The team writes, "It is unknown if blood cell counts before infection are associated with the risk of developing severe COVID-19." They explained that the numbers of these cell types could be influenced by several factors such as age, gender, disease status, and medications.

19 Oct 2020

Design of an mRNA SARS-CoV-2 vaccine encapsulated in lipid nanoparticles

Now, a new study presented on the preprint server bioRxiv in October 2020 describes the efficient design of an mRNA vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), based on the use of the viral receptor-binding domain (RBD) mRNA encapsulated in lipid nanoparticles (LNP).

19 Oct 2020

Sanofi Translate Bio MRT5500 COVID-19 vaccine shows promise in preclinical trials

The COVID-19 pandemic is threatening to come back in greater intensity during the winter and fall. Faced with this threat, vaccine development efforts are entering a phase of renewed focus, attempting to identify antigens capable of eliciting protective levels of neutralizing antibodies. A new study published on the preprint server bioRxiv* in October 2020 reports on a novel mRNA vaccine candidate's performance in two animal models.

16 Oct 2020

Researchers use single cell sequencing technology to characterize immune system of COVID-19 patients

In this study, which was published in the journal Frontiers in Immunology on September 30th, researchers used sequencing to characterize the immune system of patients who survive from COVID-19 infection from symptom onset through recovery.

14 Oct 2020

Study examines ways to improve prone positioning for severe ARDS during COVID-19 pandemic

A new study published online in the Annals of the American Thoracic Society examines ways to increase the use of prone positioning for patients with severe acute respiratory distress syndrome (ARDS), and develops specific implementation strategies that can assist in clinicians' response to the COVID-19 pandemic.

9 Oct 2020

Many hospitalized COVID-19 patients exhibit neurological symptoms, study finds

Nearly a third of hospitalized COVID-19 patients experienced some type of altered mental state and function, ranging from delirium to confusion, and in some cases, unresponsiveness, a new study has found.

7 Oct 2020

Sleep apnea increases risk of severe COVID 19

Coronavirus disease (COVID-19) is a respiratory disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. A subset of COVID-19 patients face a severe form of the disease with hospitalization, respiratory failure, or death. Severe COVID-19 is primarily characterized by respiratory distress, and the common risk factors are older age, obesity, cardiovascular disease, diabetes, and poor lung function.

29 Sep 2020

Clover Biopharma's new trimeric subunit vaccine candidate prevents COVID-19 in monkeys

The vaccine candidate produced a high level of neutralizing antibodies in animal models. Rhesus macaques immunized with the vaccine candidate showed reduced viral loads in the lungs. The research is published on the preprint server bioRxiv.

28 Sep 2020

SARS-CoV-2 emergence linked with decrease in circulation of common respiratory viruses

Analysis of samples taken to test for respiratory viruses over the past five years suggests that the emergence of SARS-CoV-2 was associated with a large drop in circulation of other common respiratory viruses during the first wave.

26 Sep 2020

Human-to-cat transmission of SARS-CoV-2 confirmed

Cat-to-cat transmission of SARS-CoV-2 has been experimentally proven, but little is known about the significance of this novel virus as a feline pathogen or its reverse zoonotic potential. The establishment of new animal reservoirs of SARS-CoV-2 could pose serious problems for human health in the future.

24 Sep 2020

Research says in SARS-CoV-2 canine infection, transmission unlikely

A new study published on the preprint server bioRxiv* in September 2020 shows that pet dogs have been falling sick and dying of a mysterious respiratory infection, often showing the presence of anti- severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies, even though in many cases they do not test positive for COVID-19.

24 Sep 2020

Infants born to women with COVID-19 show few adverse outcomes

Infants born to women with COVID-19 showed few adverse outcomes, according to the first report in the country of infant outcomes through eight weeks of age.

23 Sep 2020

Shielding strategy could be ineffective in reducing COVID-19 prevalence and mortality

With the recognition that certain subgroups of the population seemed to have a higher risk of developing severe disease following infection, some countries put shielding policies into place to protect them from infection.

23 Sep 2020

Low birth weight appears to increase risk of severe COVID-19 in adults

Researchers in Barcelona, Spain have conducted a study showing that low birth weight seems to be an independent risk factor for severe illness among non-elderly adults with coronavirus disease 2019 (COVID-19).

16 Sep 2020

COVID-19 ‘long-haulers’ experience lingering health effects

Called “long-haulers” or “long-termers,” some people report lingering symptoms of the illness for months. These people experience symptoms ranging from fatigue and weakness to chest pains and difficulty breathing.

15 Sep 2020

Potential sea animal reservoirs for coronaviruses?

The COVID-19 pandemic has focused, yet again, intense research interest on coronaviruses, due to the high toll the novel coronavirus SARS-CoV-2 has taken on human life, health, economic well-being, and social activity. A recent paper published on the server Preprints in September 2020 reviews what is known about this viral infection in water life.

13 Sep 2020