Featured Post

Warning as cases of respiratory disease Mycoplasma pneumonia rise in NSW

Image
which is more contagious bacterial or viral :: Article Creator The Surprising "Side-Effect" Of Some Vaccinations Source: Frank Merino / Pexels Have you gotten the shingles vaccination? What about the flu vax? If so, I have good news and more good news for you...And your brain. Of the many factors that contribute to healthy aging—exercise, diet, the gratitude attitude, and social connections, to name a few— the most surprising may be this one: Getting vaccinated. According to the latest research, getting vaccinated may contribute not only to your lifespan—the number of years you will live— but also to your healthspan—the amount of time you will live without major health problems, including cognitive decline. Lifespan Taking lifespan first, it's no secret that getting vaccinated contributes to a longer life for individuals who get them. Vaccinations have boosted average life expectancy for people around the globe. With v
- Post a Comment

Research team determines how fleas transmit Bubonic Plague - The Daily Evergreen

Research team to continue studying on biofilm and Bubonic plague

A+WSU+research+team+is+studying+how+fleas+can+transmit+the+Bubonic+Plague.

HALLIE CROMWELL

A WSU research team is studying how fleas can transmit the Bubonic Plague.

A research team within the Paul G. Allen School for Global Health is studying how an infectious bacterium causes fleas to transmit the Bubonic Plague via flea bite.

The research team is led by Viveka Vadyvaloo, associate professor in the College of Veterinary Medicine.

"My research is on [the] infectious disease, the Bubonic Plague," Vadyvaloo said. "[The] part of the disease we study is how this disease or the bacteria that causes this disease, Yersinia pestis, is transmitted from fleas or by flea bite."

Yersinia pestis is a bacterium responsible for the plague, she said. The bacterium was discovered and named after researcher Alexandre Yersin in the 1900s.

The plague is a zoonotic infectious disease. Zoonosis is when an infectious disease is spread by animals, said Guy Palmer, regents professor of pathology and infectious diseases and senior director of global health at WSU.

An infectious disease needs a reservoir and a vector to be transmitted. A reservoir is an organism that naturally hosts an infectious bacterium. Rats are a reservoir that naturally hosts Yersinia pestis, Palmer said.

A vector is a parasitic organism that transmits an infectious disease to a host. The flea is a vector that receives Yersinia pestis from rats, he said.

A blockage of biofilm in the flea's proventriculus or throat is causing it to regurgitate its blood meal back into its host, Vadyvaloo said.

Biofilm is a sticky gel-like substance produced by an infectious bacterium. It is made of substances regulated by the carbon storage regulator (CSR) protein, Palmer said

"The CSR is a master regulator of [biofilm]," he said. "If you didn't have the CSR, you wouldn't produce any of the biofilm components."

Bacteria are embedded in the biofilm. The bacteria will continue to build a blockage in the flea's proventriculus. This blockage prevents the flea from receiving a blood meal, Vadyvaloo said.

Part of the biofilm will break off and enter the host with the blood meal. The host then becomes infected, she said.

The elimination of biofilm in the flea's proventriculus would prevent the spread of the Bubonic Plague, Vadyvaloo said. She and her research team are continuing their research on biofilm and the Bubonic Plague.

-

Comments

Post a Comment

Popular Posts

Preventing, controlling spread of animal diseases focus of forum at Penn State - Pennsylvania State University

Image
UNIVERSITY PARK, Pa. — An outbreak of the highly pathogenic avian influenza virus in poultry in 2014-15 resulted in the destruction of more than 50 million chickens and turkeys in the U.S., causing billions of dollars in economic loss. This animal disease outbreak — the worst in U.S. history — is one example of how devastating a foreign animal disease can be to animal agriculture and the country's economy. The resurgence of avian influenza in multiple states, including Pennsylvania, is once again bringing the importance of preventing animal diseases to the forefront, noted Suresh Kuchipudi, clinical professor of microbiology in Penn State's College of Agricultural Sciences. Exploring the emergence, spread and control of animal infectious diseases such as avian influenza was the focus of the inaugural Emerging Animal Infectious Disease Conference held Nov. 29-Dec.1, 2021, at Penn State. It was hosted by the College of Agricultural Sciences, the Pennsylvania Department of A
Read more

Model Monday's: Diana Moldovan

Image
dented can botulism :: Article Creator Three Canadians Sickened In France's Botulism Outbreak Are From Quebec: PHAC The Public Health Agency of Canada has confirmed that the three Canadians who fell ill in a botulism outbreak in France are from Quebec. They're among at least 12 people who have suspected botulism after eating sardines prepared and served at Tchin Tchin Wine Bar in Bordeaux, France. The food was eaten between Sept. 4 and Sept. 10. The Associated Press has reported that some patients have been released from hospital, but most of them are in intensive care or critical condition. Canada's public health agency says it cannot divulge the condition of the patients from Quebec because it is considered private health information. Other tourists from the U.S., Ireland, Germany and Spain were among those sickened. One patient, who was not from Canada, has died. France's public health agency is leading the investigation
Read more

“Live Coronavirus Map Used to Spread Malware - Krebs on Security” plus 1 more

Image
“Live Coronavirus Map Used to Spread Malware - Krebs on Security” plus 1 more Live Coronavirus Map Used to Spread Malware - Krebs on Security Posted: 12 Mar 2020 05:12 PM PDT Cybercriminals constantly latch on to news items that captivate the public's attention, but usually they do so by sensationalizing the topic or spreading misinformation about it. Recently, however, cybercrooks have started disseminating real-time, accurate information about global infection rates tied to the Coronavirus/COVID-19 pandemic in a bid to infect computers with malicious software. A recent snapshot of the Johns Hopkins Coronavirus data map, available at coronavirus.jhu.edu. In one scheme, an interactive dashboard of Coronavirus infections and deaths produced by Johns Hopkins University is being used in malicious Web sites (and possibly spam emails) to spread password-stealing malware. Late last month, a member of several Russian language cybercr
Read more