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How a cold gets into cells

Cold viruses cause us irritation by penetrating into our cells and transporting their RNA into the cytoplasma of the infected cells. This is the only way they can multiply. The details of how the transfer of the RNA from within the virus occurs are difficult to study. However, a new method has b... Read More

Tracking how bacteria threaten newborns

For years, researchers have struggled to get a handle on Group B streptococcus (GBS), in the hopes of improving neonatal outcomes. GBS are a bacteria commonly found in the vagina, rectum, and urinary tract of women. In healthy women, the bacteria are commensal, simply living without causing dise... Read More

Mount Sinai researchers track HIV in real time as it infects and spreads in living tissue

By watching brightly glowing HIV-infected immune cells move within mice, researchers at the Icahn School of Medicine at Mount Sinai have shown how infected immune cells latch onto an uninfected sister cell to directly transmit newly minted viral particles. These interactions allow HIV to spread ... Read More

A Tale of Three Biofilm Cities on Aeration Diffusers

Fine pore diffusers are devices that pump air into wastewater in order to stimulate biodegradation of organic matter. Aeration of wastewater incur a large maintenance cost due to the buildup of biofilm, which is one of the biggest costs to the operation of sewage treatment plants. The biofilms ... Read More

A Tiny Zika Laboratory

So far in this series I’ve written a good deal about our work on Zika virus, but I have said little about the people who are doing the science.

My lab at Columbia University Medical Center is very small, consisting of three people—Amy Rosenfeld, Audrey Warren, and me. Let me tell you about ... Read More

Researchers Identify New Strategy for Decreasing Neonatal Mortality

Researchers have discovered how the bacteria Group B streptococcus (GBS) avoids detection by the immune system during pregnancy. The findings, reported in the journal mBio, could lead to the development of new drugs and strategies for treating GBS infection, which is a leading cause of neonatal ... Read More

Mold contaminant on yogurt

Mold culture growing on top of a home made yogurt culture. Yogurt was made using whole milk and incubated for 8 hrs at a ~30 degree's C then refrigerated. This culture had been in the refrigerator for over 2 weeks, well past expiration for home made yogurt. The green mold had spore formation ... Read More

Cross-respiration Between Oral Bacteria Leads to Worse Infections

Washington, D.C.—June 28, 2016—Researchers determined that two bacterial species commonly found in the human mouth and in abscesses, cooperate to make the pathogenic bacterium, Aggregatibacter actinomycetemcomitans, more infectious. Key to the cooperation is that the harmless partner provides th... Read More

New Resistance Gene Found in "High Risk" Multidrug-Resistant Pathogen

Washington, DC – July 11, 2016 – A team of Italian investigators has discovered a new variant of an emerging antibiotic resistance mechanism. The new variant, dubbed mcr-1.2, confers resistance to colistin, a last-resort antibiotic against multidrug-resistant Gram-negative pathogens. The researc... Read More

Genes Found in H. pylori that Influence Biofilm Formation

Washington, DC – July 18, 2016 - Most bacteria cannot survive in the acidic environment of the human stomach, but Helicobacter pylori, a major cause of ulcers, thrives under such circumstances. Now research has shown that one of that bacterium’s regulatory proteins that helps it adapt to these s... Read More

Method suitability in microbiology: understanding complex cGMP guidelines

Particularly in the pharmaceutical industry, microbiological method development and, specifically, method suitability is often overlooked or left until the end of a project. However, it is important to give both method suitability and development due consideration as it can be a complicated proc... Read More

First evidence that GM mosquitoes reduce disease

Releasing genetically modified mosquitoes appears to have helped reduce cases of dengue in a town in Brazil. The news comes as the US is considering whether to approve the use of the same mosquitoes.

The trial involved Aedes mosquitoes that had been modified to kill off wild mosquitoes of the... Read More

TWiV 398: Permission to be intuitive

Vincent speaks with Sandy Weller about her career and her work on the mechanisms of synthesis, maturation, cleavage and packaging of viral DNA genomes.


Host: Vincent Racaniello 


Guest: ... Read More

Unknown Environmental Swab

Out door wood railing was swabbed onto TSA and grown for 48 hrs at 37 degree's C, then allowed to grow at room temperature for 72 hrs the held at refrigerated temperature for a month. This is a close up of some of the organisms that grew. One was a brown matt color with lobate edges and rhizoi... Read More

First known case of female-to-male Zika transmission announced

The first case of female-to-male sexual transmission of the Zika virus has occurred in New York City, the Centers for Disease Control and Prevention announced Friday. Up until now, it was thought that the only likely route of sexual transmission was male-to-female or male-to-male.

The surpris... Read More

Gut bacteria imbalance increases diabetes risk

Currently, scientists think the major contributors to insulin resistance are excess weight and physical inactivity, yet ground-breaking new research by an EU funded European-Chinese team of investigators called MetaHit have discovered that specific imbalances in the gut bacteria can cause insuli... Read More

What are gut bacteria doing in critically ill lungs? New discovery could change ICU care

No one knows for sure how they got there. But the discovery that bacteria that normally live in the gut can be detected in the lungs of critically ill people and animals could mean a lot for intensive care patients.

Today, scientists are reporting that they found gut bacteria in the deepest r... Read More

Gonorrhea May Soon Be Resistant to all Antibiotics

The Centers for Disease Control and Prevention has reported that the wily Neisseria gonorrhoeae bacteria may be developing resistance to the only two antibiotics left that can cure the sexually transmitted disease.
The drugs, azithromycin and ceftriaxone, are used in combination to treat gonorr... Read More

Bleeding Fungus

Air Collection Data:
Collection Date and Time- February 8, 2016
Weather Conditions and Temperature- 44% relative humidity and 10℃
Collection Location: In the courtyard behind the Savitt Medical Science Building at the University of Nevada, Reno with the collection device facing northeast
Sa... Read More

Lichen Fruiting Bodies

Lichen (Xanthoria spp) Fruiting bodies, disc like structures, seen on the shady side of tree in Santa Cruz, Ca. Read More
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