DNA-binding protein blocks virulence cascade in a diarrhea pathogen outside hosts, study finds Some pathogens use temperature as a trigger and activate virulence only after entering the warmer environment of a host. A research team from Ruhr University Bochum, Germany, and the University of…

#DNA-binding #protein blocks #virulence cascade in a #diarrhea #pathogen outside hosts ...

| #bacteria | #microbiology | #Yersinia | #plague | #immunesystem | Via @sciencex.bsky.social

phys.org/news/2026-04...

#yersinia pestis can be transmitted to humans through exposure to ill pets, especially cats. Regular treatment of pets and their surroundings for fleas might reduce the risk for infection with pathogens transmitted by fleas.

Notes from the Field: Early-Season Human Plague ... This report describes transmission of plague from a ...

#Yersinia pestis #plague www.cdc.gov/mmwr/volumes... pic ref cdc bipolar staining not pathognomonic #flea

Rare set of varied factors triggered Black Death Volcanic eruptions in the mid-1340s triggered a chain of events that brought the Black Death to Europe.

Rare set of varied factors triggered black death ...

| #BlackDeath | #yersinia | #plague | #pathogen | #pandemic | By @jenlucpiquant.bsky.social via @arstechnica.com

#yersinia humans are dead end host via flea bite, direct contact with tissue/secretions of infected animal, rarely inhalation of aerosols, hunters, can get infected from pet cars that eat rodents or exposed pet dogs who sleep in human bed

#Yersinia is aerobic gram negative cocobacilli exhibit bipolar staining: flea transmitted disease of rodents. Epizootics ⬆️risk of transmission to humans. Western USA:ground 🐿 prairie dog, chipmunk

#plague #yersinia pestis bipolar staining. For pneumonia: #droplet precautions are needed

New study! @bfrde.bsky.social

High exposure to #Campylobacter, #Salmonella, #Yersinia and #Hepatitis E virus in migrant and non-migrant groups in Berlin.

Risk patterns vary with culturally rooted eating habits, calling for targeted prevention and food safety awareness.

🔗 doi.org/10.3390/trop...

First scientific evidence of Black Death in Edinburgh found on skeleton Plaque on the teenager's teeth contains pathogens of the bacteria for the Bubonic plague.

Evidence of black death in #Edinburgh found on #skeleton ...

| #Plaque | #Yersinia | #bacteria | #Bubonicplague | Via bbc .com

'Molecular bodyguard' helps bacterial infections persist in hostile environments Researchers at Umeå University have identified a key molecular player that helps bacteria survive the hostile environment inside the body. Their study, published in the journal mBio, reveals how the…

'Molecular bodyguard' helps #bacterial #infections persist in hostile #environments ...

| #microbes | #protein | #genes | #RfaH | #Yersinia | By @umeauniversitet.bsky.social via @sciencex.bsky.social

Yersinia actively downregulates type III secretion and adhesion at higher cell densities Author summary Bacteria can use the type III secretion system (T3SS), a molecular syringe-like device, to manipulate host cells by injecting effector proteins. Yersinia enterocolitica, a pathogenic ba...

Yersinia actively downregulates type III secretion and adhesion at higher cell densities
#yersinia #pathogens #microbiology
@plos.org
journals.plos.org/plospathogen...

First day of the 15th International #Yersinia symposium in Ulaanbaatar, Mongolia

Scientists identify pathogen responsible for 'world’s first pandemic' For the first time ever, researchers have found direct genetic evidence of the bacterium (Yersinia pestis) responsible for the plague.

Ancient #DNA solves 1,500-year-old mystery that caused ‘world’s first #pandemic’ ...

| #Plague | #bacteria | #Yersinia | #microbes | #Mediterranean | Via interestingengineering .com

New Mexico man diagnosed with plague in state's 1st human case this year: Officials A New Mexico man has been diagnosed with plague, marking the state's first human case this year, according to local health officials.

New Mexico man diagnosed with #plague ...

| #Yersinia | #NewMexico | #infection | #pathogen | Via abcnews .go .com

California resident tests positive for the plague after camping, officials say South Lake Tahoe resident was probably bitten by infected flea while camping in the area, local health authorities say

Resident in #California tests positive for the #plague after camping ...

| #bacteria | #flea | #publichealth | #Yersinia | By @annabetts.bsky.social via @theguardian.com

E. coli and Vibrio outbreaks recorded in New Zealand New Zealand has reported E. coli, Clostridium perfringens and Vibrio outbreaks in recent months. An outbreak of acute gastroenteritis associated with a food business was reported in Auckland in June. It involved 32 patients. Clostridium perfringens was identified in leftover food, and in clinical samples from a hospitalized person and... Continue Reading

Livestock played a role in prehistoric plague infections To try to solve the puzzle of how the infection persisted and spread over thousands of years in Eurasia, an international team of researchers from the Max Planck Institute of Infection Biology,…

#Livestock played a role in prehistoric #plague #infections ...

| #Yersinia | #bacteria | #sheep | #Eurasia | Via eurekalert .org

©Institut Pasteur

🦠 14 years, one patient, one superbug
@yersiniaunit.bsky.social scientists tracked Yersinia enterocolitica mutations as it developed antibiotic resistance over 14 years. Unprecedented view of bacterial evolution under treatment pressure 💊 
pubmed.ncbi.nlm.nih.gov/40595576/
#AMR #yersinia

Bronze Age #Yersinia pestis genome from sheep sheds light on hosts and evolution of a prehistoric plague lineage.

Ancient sheep & human Y. pestis share one lineage; parallel gene loss, selection shaped LNBA vs modern strains.

www.cell.com/cell/fulltex... #MicroSky #IDSky

After #cat tests positive and dies from #plague Jefferson County #Colorado on alert ...

| #feline | #yersinia | #infection | #bacteria | #pathogen | Via 9news .com

www.9news.com/article/news...

#plague #yersinia #pestis

#Yersinia pestis dx via direct testing of specimens w/ immunofluorescence or PCR. lymph node pcr aspirates 81% sensitive & 100% specific. Dx confirmed by culture of blood or bubo aspirate. Y pestis specific fraction 1 capsular Ag available for rapid id of culture isolates

Bubonic #plague #yersinia pestis

3 primary forms of plague are bubonic (approximately 80% of US patients present this way), septicemic, and pneumonic. Additional, less common manifestations include cutaneous, pharyngeal, and meningeal disease

Y. pestis is responsible for the disease plague, which caused the Plague of Justinian and the Black Death, one of the deadliest pandemics in recorded history. Y. pestis is a hyperparasite, also known as a metaparasite, is a parasite whose host, is also a parasite.

#plague #yersiniapestis #Yersinia

La peste à l’ère moderne, comprendre la transmission de la bactérie Yersinia pestis par les puces | médecine/sciences médecine/sciences (M/S), revue internationale dans le domaine de la recherche biologique, médicale et en santé

🚨New Pub🚨 La #peste à l’ère moderne, comprendre la transmission de la bactérie #Yersinia #pestis par les puces by Florent Sebbane's lab

@inserm.fr @pasteurlille.bsky.social @chulille.bsky.social @univlille.bsky.social @cnrs-hautsdefrance.bsky.social

Pneumonic Plague Infections in Modern Times Show the Black Death Isn’t Dead A person in Arizona recently died of pneumonic plague—a rare and severe form of the disease. An expert explains how the bacteria that spurred the Black Death centuries ago continues to claim lives

#Pneumonic #plague #infections in modern times show the black death is NOT dead ...

| #Yersinia | #bacteria | #Arizona | #publichealth | #pathogen | By @laurenjyoung.bsky.social via @sciam.bsky.social

Arizona patient dies in emergency room from plague The patient was recently treated at an emergency department in Flagstaff and died the same day, Northern Arizona Healthcare said.

#Patient dies in emergency room from #plague ...

| #Arizona | #bacteria | #Yersinia | #infection | Via @nbcnews.com

Exploring temperature-dependent transcriptomic adaptations in Yersinia pestis using direct cDNA sequencing by Oxford Nanopore Technologies - Scientific Reports Scientific Reports - Exploring temperature-dependent transcriptomic adaptations in Yersinia pestis using direct cDNA sequencing by Oxford Nanopore Technologies

📢 Our latest article is out!
We present a cost-effective in-house #RNASeq workflow using @nanoporetech.com direct cDNA, perfect for high-risk pathogens.
Applied to #Yersinia pestis, transcriptomic profiling (21 °C/flea vs 37 °C/host) reveals novel operons & sulfur metabolism upregulation.

Microencapsulated phytogenics offer new hope against Yersinia in rainbow trout A joint study by Vetagro and Onda shows that microencapsulated phytogenics significantly reduce mortality from Yersinia ruckeri in rainbow trout.

A joint study by Vetagro and Onda shows that microencapsulated phytogenics significantly reduce mortality from Yersinia ruckeri in rainbow trout.

English 👉 aquafeed.com/products/sup...

Español 👉 es.aquafeed.com/productos/no...

#aquafeed #aquafeedenespañol #trout #yersinia

Black Death bacterium has become less lethal after genetic tweak Reducing the number of copies of one gene in the pathogen could also make it more transmissible.

A genetic tweak makes #Yersinia pestis less deadly but more transmissible, aiding its spread in smaller groups.

Y. pestis caused the Black Death & still circulates today. Researchers found reduced pla gene in some strains, linked to milder disease forms.

www.nature.com/articles/d41... #MicroSky