All USA & Canada articles – Page 3
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NewsPlankton bloom off Madagascar linked to drought in South Africa
Researchers show that dust from drought-stricken Southern Africa caused a bloom of marine phytoplankton off the southeast Madagascar coast from November 2019 through February 2020.
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NewsAntibodies in breast milk provide protection against common GI virus
A study has found that breast milk provides protection against rotavirus, a common gastrointestinal disease that causes diarrhea, vomiting and fever in infants.
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NewsVaccinating the young can save the old in the Tropics
A model suggests that vaccinating children and teens against the flu can help protect the elderly in tropical countries.
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NewsNew mouse models offer valuable window into COVID-19 infection
Scientists have developed six lines of humanized mice that can serve as valuable models for studying human cases of COVID-19 because their cells were engineered to include two important human molecules that are involved in infection of human cells.
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NewsNew images of RSV may expose stubborn virus’s weak points
Using cryo-electron tomography, researchers have revealed details of molecules and structures essential to RSV’s form and function.
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NewsCould a bout of COVID protect you from a severe case of flu?
More than 200 viruses can infect and cause disease in humans; most of us will be infected by several over the course of a lifetime. Does an encounter with one virus influence how your immune system responds to a different one?
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NewsResearchers discover mechanism driving immune perturbations after severe TB infections
Rsearchers have discovered a mechanism that drives the long-term decline in immune response that is observed after tuberculosis (TB) has been successfully treated.
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NewsGetting the flu and then your shot may benefit immunity
In a new study, researchers have found that natural immunity from previous flu infections has a significant impact on how well future influenza vaccinations work.
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NewsPromising TB therapy safe for patients with HIV
A therapy showing promise to help control tuberculosis (TB) does not interfere with combined antiretroviral therapy (cART), according to new research.
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NewsImmunotherapy for gum disease? Study in mice shows promise
Delivering microparticles containing the immune-modulating compound CCL2 directly to the gums inhibited bone loss and sped up bone repair in a mouse model of periodontal disease, new research has found.
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NewsCircadian disruption and gut microbiome changes linked to colorectal cancer progression
Research has revealed how disruption of the circadian clock, the body’s internal, 24-hour biological pacemaker, may accelerate the progression of colorectal cancer by affecting the gut microbiome and intestinal barrier function.
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News$12 million grant to research how vaccines induce lasting immunity
Researchers have received a $12 million grant to study how vaccines trigger long-lasting immune responses. The work may inform the design of new, more protective vaccines for respiratory viruses, including SARS-CoV-2 and influenza.
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NewsResearchers to develop a new method for preserving microbial samples
The project aims to develop a new method for preserving microbial samples without refrigeration/cooling requirements through integrating innovations in microfluidics, biomaterials, protein engineering, and synthetic biology.
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NewsStudy unveals a novel protective mechanism in bacterial cell wall
Researchers from Umeå University, Sweden, and Cornell University, USA, have discovered a widespread mechanism in bacteria that enhances the bacteria’s defense against environmental threats. Source: Umeå University Sara Hernandez and Laura Alvarez, two of the researchers behind the study in the lab. The discovery, which may be ...
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NewsScientists design new drug to fight malaria
Scientists have designed a new drug against malaria and identified its mechanism of action. MED6-189 is effective against drug-sensitive and drug-resistant P. falciparum strains in vitro as well as in a humanized mouse model.
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NewsResearchers discover new bacterium that causes gut immunodeficiency
The new findings lay the groundwork for potential new treatments for variety of inflammatory and infectious diseases including inflammatory bowel disease, Crohn’s and ulcerative colitis.
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NewsStudy reveals the hidden complexity of bacterial biofilms
Research reveals insights into the development of bacterial biofilms, highlighting how these communities adapt to environmental stress through complex interactions between physical and biological processes occurring in the surrounding environment.
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NewsBacteria involved in gum disease linked to increased risk of head and neck cancer
More than a dozen bacterial species among the hundreds that live in people’s mouths have been linked to a collective 50% increased chance of developing head and neck squamous cell carcinoma (HNSCC), a new study shows. Some of these microbes had previously been shown to contribute to ...
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NewsPigs may be transmission route of rat hepatitis E to humans
New research suggests that pigs may function as a transmission vehicle for a strain of the hepatitis E virus (HEV) common in rats that has recently been found to infect humans.
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NewsBacterial ‘flipping’ allows genes to assume different forms
A new study has shown that inversions, which cause a physical flip of a segment of DNA and change an organism’s genetic identity, can occur within a single gene, challenging a central dogma of biology — that one gene can code for only one protein.
