Pathogen News and Research

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SARS-CoV-2 T-cell immunity is retained for at least six months

Now, a new study published on the preprint server bioRxiv shows that functional SARS-CoV-2-specific T-cell responses are retained for six months following infection. However, the strength of this response depends on the clinical features of the primary infection.

3 Nov 2020

Researchers track the flight trajectory of airborne cough droplets

The ongoing COVID-19 pandemic has led many researchers to study airborne droplet transmission in different conditions and environments. The latest studies are starting to incorporate important aspects of fluid physics to deepen our understanding of viral transmission.

3 Nov 2020

Adaptive evolution of human coronaviruses may necessitate frequent reformulation of vaccines

Researchers from the Vaccine and Infectious Disease Division at the Fred Hutchinson Cancer Research Center, USA, have revealed that adaptive evolution in the antigenic regions facilitates seasonal coronaviruses to escape the host immune responses and to cause recurrent infections.

3 Nov 2020

Scientists explore relationship between moisture and disease establishment

Downy mildew is the biggest threat to spinach production around the world. While the pathogen has a short life cycle (approximately a week), it can produce millions of spores during the spinach growing season.

3 Nov 2020

Scientists identify neutralizing human monoclonal antibodies against SARS-CoV-2

University of Pittsburgh School of Medicine scientists have discovered the fastest way to identify potent, neutralizing human monoclonal antibodies against SARS-CoV-2, the virus that causes COVID-19.

3 Nov 2020

Researchers reveal mechanisms that help C. difficile pathogen to survive in low oxygen levels

Researchers from ITQB NOVA, in collaboration with the Institut Pasteur in Paris, have shed light on the mechanisms that allow Clostridioides difficile, a pathogen that can only grow in oxygen-free environments, to be able to survive low oxygen levels.

3 Nov 2020

Fight against trachoma disrupted by COVID-19 pandemic

Progress towards the elimination of trachoma as a public health problem has been substantial, but the COVID-19 pandemic has disrupted community-based control efforts.

2 Nov 2020

Study sheds new light on how the immune system remembers viruses

For a person to acquire immunity to a disease, T cells must develop into memory cells after contact with the pathogen.

2 Nov 2020

UIC enrolls people into phase 3 monoclonal antibody clinical trial

Researchers at the University of Illinois Chicago are now enrolling people into a phase 3 clinical trial that will test if a monoclonal antibody treatment -- administered as a series of four shots -- will help protect uninfected individuals from acquiring or getting sick from COVID-19 after someone in the household tests positive for COVID-19.

30 Oct 2020

Hospital floors create route of transfer of potentially dangerous organisms to patients

The floors of hospital rooms are quickly and frequently contaminated with antibiotic-resistant bacteria within hours of patient admission, creating a route of transfer of potentially dangerous organisms to patients, according to a study published today as part of the proceedings from Decennial 2020: The Sixth International Conference on Healthcare-Associated Infections.

30 Oct 2020

SARS-CoV-2 spike proteins can directly impact the blood-brain barrier

Like a key, SARS-CoV-2 - the virus that causes coronavirus disease 2019 (COVID-19) - attaches to specific molecules on the host cell surface, opening gateways into the cell interior.

30 Oct 2020

Human immune system may play key role in shaping the microbiome composition

The gut is an unusually noisy place, where hundreds of species of bacteria live alongside whatever microbes happen to have hitched a ride in on your lunch.

30 Oct 2020

Penn State and Stanford University collaborate to develop two-hour sepsis test

One in three people who die in U.S. hospitals have sepsis, the body's extreme response to infection that can lead to multiple organ failure. Diagnosis can take up to five days, but death may take only hours from the initial onset of sepsis.

30 Oct 2020

Model includes spatial heterogeneity to analyze airborne disease spread

Researchers from the University of Copenhagen have included parameters that consider a spatially heterogeneous population for transmission in a new model for airborne disease transmission. This allows for estimating superspreaders and appropriate mitigation strategies.

29 Oct 2020

Researchers identify a novel SARS-CoV-2 variant that spread widely across Europe in summer 2020

Researchers from Basel and Spain have identified a novel SARS-CoV-2 variant that has spread widely across Europe in recent months, according to an un-peer-reviewed preprint released this week.

29 Oct 2020

Toxin-carrying virus implicated in the emergence of new Salmonella strain in pigs

Researchers at the Quadram Institute have implicated a toxin-carrying virus in the emergence of a new strain of Salmonella in pigs.

29 Oct 2020

Research program aims to thwart prion-like spread of tau pathology in Alzheimer’s disease

Tangles of misfolded tau proteins in the brain are closely associated with memory loss in patients with Alzheimer's disease. In order for this tau pathology to spread, the protein must interact with heparan sulfate, a sugar molecule found on the surface of neurons.

28 Oct 2020