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A greyscale micrograph of a Ly6G+ macrophage, showing a kidney-shaped nucleus and many elongated cell-surface protrusions.
Disappearing Act: Novel Population of Transient Macrophages Repair Lungs After Illness
Initially mistaken for neutrophils, a population of atypical macrophages appears in the lungs after severe viral infection, orchestrates tissue repair, and then vanishes. 
Disappearing Act: Novel Population of Transient Macrophages Repair Lungs After Illness
Disappearing Act: Novel Population of Transient Macrophages Repair Lungs After Illness

Initially mistaken for neutrophils, a population of atypical macrophages appears in the lungs after severe viral infection, orchestrates tissue repair, and then vanishes. 

Initially mistaken for neutrophils, a population of atypical macrophages appears in the lungs after severe viral infection, orchestrates tissue repair, and then vanishes. 

COVID-19

Image of the small intestines and colon within a person with three circular callouts, highlighting different microbes. 
Unlocking the Human Microbiome Mysteries: From Cancer to COVID-19
Laura Tran, PhD | Sep 24, 2024 | 4 min read
The microbiome is a dynamic environment that can give researchers the inside scoop on health and disease.
Two vaccine syringes on a baggy labelled with San Diego Zoo and Bonobo
Can Animals Get Covid and Should They Be Vaccinated?
Chris Baraniuk | Sep 23, 2024 | 7 min read
While covid has caused illness and millions of deaths among humans, multiple nonhuman animal species have turned out to be susceptible to it, too.
Vaccines and Beyond: Strategies and Technologies for mRNA Therapeutics
Vaccines and Beyond: Strategies and Technologies for mRNA Therapeutics
The Scientist Staff | Jun 19, 2024 | 2 min read
An expert panel will discuss mRNA-based vaccines, current approaches and challenges, and how researchers are moving RNA therapeutics forward in exciting new directions.
Three covid rapid antigen tests displaying (left to right) invalid, positive, and negative results.
What Does a Positive Covid Test Look Like?
Christie Wilcox, PhD | May 10, 2024 | 7 min read
Lateral flow tests for COVID-19 can be very accurate and specific when used as directed, but introducing acidic fluids can cause the tests’ detecting antibodies to clump, which may read as a positive result.
Beyond Cytotoxicity: The Importance of T Cell Memory<br ><br>
Beyond Cytotoxicity: The Importance of T Cell Memory
The Scientist | Jan 4, 2024 | 1 min read
In this webinar, Grégoire Lauvau and Marcus Buggert will discuss the function and role of memory T cells in health and disease.
The COVID-19 Pandemic Abruptly Altered the Infant Microbiome
Kamal Nahas, PhD | Jan 4, 2024 | 4 min read
Microbial diversity in the infant gut shrank suddenly during the first lockdown, but the lasting health effects are less clear.
qPCRDriving Wastewater Surveillance for Infectious Disease
Nathan Ni, PhD | Oct 30, 2023 | 3 min read
Natalie Knox and the Public Health Agency of Canada’s National Microbiology Laboratory are helping establish a national qPCR-driven wastewater surveillance network for SARS-CoV-2 and other diseases.
Black and gold sketch of Katalin Karik&oacute; and Drew Weissman.
Nobel Prize for mRNA Vaccines
Danielle Gerhard, PhD | Oct 2, 2023 | 5 min read
Katalin Karikó and Drew Weissman received this year’s Physiology or Medicine award for their work on RNA biology and mRNA-based vaccines.
<em >The Scientist</em>&rsquo;s Journal Club: Infectious Diseases
The Scientist’s Journal Club: Infectious Diseases
The Scientist | Jul 27, 2023 | 1 min read
Scientists present the latest research on infection prevention and treatment, including COVID-19 and tropical infectious diseases.
Learn How Researchers Found Antibodies Targeting Omicron SARS-CoV-2 Variants
Searching for Novel Antibodies with Optofluidics-Powered Screening
Phenomenex | Jul 18, 2023 | 1 min read
Vaccination against one SARS-CoV-2 variant can yield antibodies with efficacy against other viral variants.
Illustration of glowing fireflies
Glow-in-the-dark Diagnostics
Danielle Gerhard, PhD | Jul 5, 2023 | 2 min read
A nucleic acid detection platform that marries CRISPR diagnostic tools with bioluminescence could accelerate treatment decisions in the clinic.
Woman with her back to camera, with arms stretched out, soaking up the sunshine
A Genetic Predisposition to Vitamin D Deficiency Contributes to Severe COVID-19
Iris Kulbatski, PhD | Jun 1, 2023 | 3 min read
Ana Teresa Freitas discussed how individual variation in vitamin D synthesis and metabolism influences susceptibility to upper respiratory viruses.
Illustration of a virus
Vaccines: Sex Matters
Niki Spahich, PhD | Jun 1, 2023 | 3 min read
Male patients who recover from mild COVID-19 have baseline immune states primed to mount stronger responses to future challenges than female patients.
SARS-CoV-2 self-assembling virus-like nanoparticle with spike proteins protruding from the surface.
New Technology Improves SARS-CoV-2 mRNA Vaccine-Induced Immune Responses
Elina Kadriu | May 30, 2023 | 3 min read
mRNA-encoded self-assembling enveloped virus-like particles presenting SARS-CoV-2 spike protein enhance immunity and may provide better protection against viral variants. 
Sun
Relevant Models Reflect Real-World Needs
The Scientist | May 30, 2023 | 1 min read
Jie Sun shares how his curiosity, creativity, and motivation to address clinical public health needs steer his research in immunology and infectious disease.
3D rendered illustration of a coronavirus with an overlaid network of lines and dots.
Connecting the Dots That Link Diabetes and Infection Severity
Deanna MacNeil, PhD | May 22, 2023 | 4 min read
Researchers shed light on the immunometabolism of respiratory infection, providing an avenue towards safer COVID-19 therapeutics for those affected by metabolic disorders.
What Lies Beneath: Wastewater Testing for Pathogens
What Lies Beneath: Wastewater Testing for Pathogens
The Scientist | May 3, 2023 | 1 min read
Michael Wiley will discuss detecting pathogens in communities through wastewater surveillance programs.
<em >The Scientist</em>&rsquo;s Journal Club: Immunology
The Scientist’s Journal Club: Immunology
The Scientist | May 2, 2023 | 1 min read
Scientists present the latest research on the immune response against SARS-CoV-2, the influence of COVID-19 on future vaccine responses, and drivers of T cell development.
Image of methylated DNA
Stress Increases Biological Age, But Recovery Can Revert It
Alejandra Manjarrez, PhD | Apr 21, 2023 | 2 min read
A new study relying on DNA methylation clocks suggests that the biological age of mouse and human cells can fluctuate in response to stressful events.
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