Hot Invisiverse Posts
News: This Genetic Defect Could Be Why Typhoid Mary Never Got Typhoid Fever
Whether or not a microbe is successful at establishing an infection depends both on the microbe and the host. Scientists from Duke found that a single DNA change can allow Salmonella typhi, the bacteria that causes typhoid fever, to invade cells. That single genetic variation increased the amount of cholesterol on cell membranes that Salmonella and other bacteria use as a docking station to attach to a cell to invade it. They also found that common cholesterol-lowering drugs protected zebrafi...
News: Supercomputer's Simulated Patients Help Doctors Choose the Right TB Meds
The incidence of tuberculosis (TB) is dropping in the US, but the World Health Organization (WHO) considers it to be epidemic in the rest of the world — there were over 10 million new cases in 2016.
News: Probiotics Could Cut Sepsis in Infants for Just $1 a Day
Bacteria, viruses and other germs sometimes set off the immune system to overreact, producing a severe condition called sepsis. Sepsis is so dangerous that it is the leading cause of death of children across the world, killing a million kids every year, mostly in developing countries. Probiotic bacteria might be able to prevent sepsis and infections, but no large research studies have been done to find out whether that actually works. Until now.
News: New Research May Help Stop Deadly Lassa Virus
A recent study offers information that might help combat a deadly virus that affects an estimated 300,000 people each year in West Africa.
News: A New Set of Cancer Drugs May Work Against Viruses, Too
How can a drug used to treat cancer be effective against viruses, too? The answer lies in the drug's shared target — specifically, cellular components that control the activity of genes. A new research study showed that one such type of drug, histone methyltransferase inhibitors used in cancer clinical trials, has activity against herpes simplex virus, too.
News: Scientists See Bacteria Responding Electrically to Physical Stimuli for the First Time
Scientists know that bacteria create their own energy, get nutrients to run their cellular processes, and multiply. But, bacteria haven't been shown to respond to external mechanical stimulation or signals in a way that's similar to how our bodies respond to touch, until now.
News: Bad News for Bats — Deadly Fungus Spreading This Summer
While not cuddly to most, bats are shy, skilled flyers that fill an important role in their environments. A new study reveals a deadly disease decimating North American bat populations has stepped up its attack on vulnerable bat populations in the summer months.
News: Seeing a Doctor? Make Sure They Clean Their Stethoscope
How would you feel if the stethoscope used by your doctor to listen to your heart and lungs was teeming with potentially unfriendly bacteria?
News: You Don't Need Antibiotics for Pink Eye
Crusty, itchy, red eyes? There is a decent chance you could have conjunctivitis, or pink eye, an infection of the thin lining around the eye and the eyelid, caused by bacteria, an allergen, virus, or even your contact lenses. Whatever the cause — you call up your doctor to get a prescription to clear it up, right? Not really.
News: Replacement Joints with Antibiotics on Board Mean Lower Chance of Infection & Fewer Surgeries
For about a million Americans each year, a joint replacement brings relief from pain and restored mobility. But, 5–10% of those people have to endure another surgery within seven years, and most of those are due to an infection in their new joint. If doctors could treat infections more effectively, patients could avoid a second surgery, more pain, and another rehabilitation.
News: Good News, Eating Fish Is Safer! Bad News — Think Twice About Ordering the Grouper
Regarding foodborne pathogens, eating fish is not as hazardous as it was a few years ago — but if fins are on the menu, it's good to have a heads-up about what's good and what's bad these days.
News: How Calcium Sets Off a C Diff Infection
Unfortunately, the very places we go to receive health care put us at risk for becoming infected with superbugs, bacteria exposed to so many antibiotics that they have become immune to their effects. Clostridium difficile (C. diff) is one such bacteria. It causes inflammation of the colon and rampant diarrhea that can have life-threatening consequences. Part of its virulence lies in the tough spores formed by the bacteria. They are responsible for starting infections in the colon and for spre...
News: In Love? True Togetherness Means Sharing the Same Microbes
Love is the spice of life — it is also the microbes that couples share through sickness and in health, through the bathroom and in a hallway.
News: Finally, a New Drug Against 'Untreatable' Gonorrhea
Gonorrhea infections reached a peak in 1975, then decreased until 2009, when infection rate started rising and has increased each year since. With the rise of antibiotic resistance, those numbers are only going to get worse — unless we find new treatments against the bacteria.
News: Century-Old Finding May Show the Way to Create Vaccines Against Toxic Strep Infections
Infections with group A streptococcus, like Streptococcus pyogenes, claim over a half million lives a year globally, with about 163,000 due to invasive strep infections, like flesh-eating necrotizing fasciitis and streptococcal toxic shock syndrome.
Step Aside MRSA & C Diff: Researchers Just Found 3 New Healthcare Associated Infections
The growing list of dangerous antibiotic resistant organisms has just acquired three new members. Researchers have discovered three new species of Klebsiella bacteria, all of which can cause life-threatening infections and have genes that make them resistant to commonly used antibiotics.
News: CDC Warns About a Big Spike in Cyclospora Infections — Here's What That Is & How to Avoid It
The intestinal parasite Cyclospora cayetanensis has a dramatically increased infection rate this summer, and the source is still unknown, the CDC advised today. 2017 is a good year for Cyclospora looking for homes to start their families and a bad year for those of us who don't like food-stealing tenants living in our bodies.
News: Defective, Infectious Proteins Linked to Type 2 Diabetes
More than one in ten people in the US have type 2 diabetes — that's over 29 million people. It's characterized by excessive sugar (glucose) in the blood due to the development of resistance to insulin, the hormone that normally metabolizes glucose.
News: Modern Life Means Less Gut Bacteria, More Chronic Disease
When you have an infection, a doctor prescribes antibiotics to make the bacteria that causes it disappear. Sounds like a good idea, but the disappearance of microorganisms that have inhabited humans for millennia could be driving rising numbers of serious illness and debilitating conditions.
News: Sealed with a Kiss — Can Zika Be Transmitted Through Saliva?
A new study shows the Zika virus is present in saliva — but it may not be enough to make you sick. The Centers for Disease Control and Prevention notes there is "no evidence that Zika can be transmitted through saliva during deep kissing." Given the results of research published in the journal, Nature Communications," the agency may need to revise its guidance.
Medical Mystery: Man Catches Zika, but No One Knows How
An older man dies of Zika. A younger man who cares for him catches Zika — but doctors cannot pinpoint how the disease was transmitted. While proximity to the patient is sufficient explanation for the rest of us, for microbe hunters, it is a medical mystery. Why? Zika is not known to transmit from person-to-person casually.
News: Dangerous Dengue Fever Could Go Worldwide, with Help from Air Travel & Climate Change
Rising on the world stage, dengue fever is transmitted by mosquitoes — and apparently air travel too.
News: How Gut Bacteria Could Set Off the Immune System in Rheumatoid Arthritis
As if the swollen, painful joints of rheumatoid arthritis weren't enough, the disease is the result of our immune system turning against cells of our own body. Ever since this realization, scientists have worked to find the trigger that sets the immune system off. Scientists believe that gut bacteria may have a role in initiating the abnormal immune response. Now, a team of researchers from Boston has figured out how that might occur.
Prime Directive: How NASA's Planetary Protection Officer Keeps Our Germs from Contaminating Other Planets (& Vice Versa)
On July 20, 1969, humans set foot on the moon for the first time. But some say our microbes beat us there. With the Space Age came new questions about microscopic invaders from outer space and concern about where we are leaving our microbial footprints. The questions are even more relevant today.
Tasty Testing: Artisanal Cheese Reveals Microbial Secrets of Deliciousness
Whether your palate runs to domestic or imported, a piece of cheese can be a real treat for the senses. Its smell, taste, and texture are all parts of its appeal. A big part of what makes that savory wonderfulness comes from the microbes in and on the cheese. Thanks to a team of researchers dedicated to studying those microbes, we have a better understanding of their importance to cheese and us.
News: Change of Tune? Not Everyone Needs to Finish That Course of Antibiotics
After years of telling patients to finish any prescribed course of antibiotics completely, a group of researchers in the UK say it is no longer necessary, and could even be harmful if we want to preserve the antibiotics we can still use.
News: How Malnutrition & Gut Infections Feed Off Each Other
The number of households in the US that go hungry because they lack money for food hit a high of almost 15% in 2011. While that number continues to decline, nearly 13% of American households still go hungry.
News: Your Lungs Aren't the Same After a Battle with Pneumonia
Once we recover from the respiratory infection pneumonia, our lungs are better equipped to deal with the next infection — thanks to some special cells that take up residence there.
News: Artificial Viruses Provoke the Immune System to Fight Cancer
Cancer cells do a pretty good job of flying under the radar of our immune system. They don't raise the alarm bells signaling they are a foreign invader the way viruses do. That might be something scientists can change, though.
News: The Opioid Crisis to Blame for 12-Fold Increase in Cases of Heart Infections
Four million Americans misused prescription opioid painkillers in 2014. Those who do are 40 times more likely to inject heroin or other drugs than other people. Now, the Centers for Disease Control and Prevention (CDC) are blaming that misuse for a 12-fold increase in endocarditis, an infection of the heart valves.
News: How Viruses Might Cause Brain Changes & Learning Problems
Despite mounting scientific evidence that viruses can cause changes in learning and memory, the reasons have remained elusive.
News: Ancient Fungus Gives Trees a Better Chance at Surviving Hotter Temperatures
A 6,000-year-old forest inhabitant awakens to find life in the forest around it in crisis. Plants, trees, animals, and birds are moving north to escape increasingly heated air, even as mass extinctions take place around the world. The inhabitant stirs and remembers it has lived this before and knows what to do.
News: Bacterial Bugs in Your Eyes Help Fend Off Infection
Not all bacteria in the eyes cause infection. A group of researchers from the National Eye Institue has shown that not only is there a population of bacteria on the eyes that reside there but they perform an important function. They help activate the immune system to get rid of bad, potentially infection-causing — pathogenic — bacteria there.
Double Shot: New Class of Antibiotics Could Treat Plague & Multi-Drug Resistant Superinfections
Antibiotics are one of our main weapons against infections. The problem is that many bacteria are becoming resistant to most of the antibiotics we use to treat them, and those 'superbugs' have created an urgent threat to our global health. A research group found a new way to hit a well known bacterial target and have developed a drug to hit it.
News: HIV Prevention Ring Passes Safety Testing Clinical Trial
Young girls, especially those who live in areas where HIV is epidemic, like sub-Saharan Africa, are particularly vulnerable to becoming infected with HIV. A vaginal ring containing the antiviral agent dapivirine has been shown to decrease the chance of developing HIV-1 in adult women over 21 and now in the first step for use in adolescents, the ring has been shown to be safe and well-tolerated in that younger age group.
News: Penis Microbiome Could Enhance Risk of Infection with HIV
New research explores how the bacteria on the penis can leave men more susceptible to infection with HIV.
News: Tougher Than Steel — Tardigrades Will Survive Until the Sun Explodes
Forget the rise of the machines. Tardigrades are set to outlive everything — even the bots. When the last echo of a whisper in a cell phone has long dissipated into space, the water bears will still be hanging out.
News: Researchers May Be Closing in on a Vaccine Against HIV
Results of an early-stage clinical trial of an HIV vaccine could mean a hoped-for breakthrough in the battle against AIDS.
News: Vaginal Probiotics Could Slow Zika & Other STD Infections
We might think of Zika as a mosquito-borne virus that effects developing fetuses, but, it also can be passed through sex by either a man or a woman, just like herpes and other STD viruses. New research has shown that vaginal bacteria can inhibit sexually transmitted Zika virus and Herpes Simplex Virus-2 in women.
Space 'Shrooms: NASA Identifies What Kind of Fungi Could Grow in a Mars Habitat
Wherever there are people, the party is sure to follow. Well, a party of microbes, at least. That is what scientists at NASA's Jet Propulsion Laboratory have found after a 30-day microbial observation of the inflatable lunar/Mars analog habitat (IMAH).