Category Archives: Microbiology

USA – Salmonella cases linked to hedgehogs spread to more states, CDC warns

Duluth News Tribune

 

Two months after the Centers for Disease Control and Prevention advised people not to “kiss or snuggle hedgehogs” because of a salmonella outbreak, the federal health agency announced that six more people in three more states, including Virginia, have fallen ill after coming into contact with the prickly pets.

 

As of Friday, 17 people nationwide have been infected with a strain of Salmonella typhimurium that the CDC first warned in January could be linked to pet hedgehogs.

No one has died, but two people were hospitalized.

USA – FDA issues warning to dog owners after pet food tests positive for Salmonella

10 News

 

The U.S. Food and Drug Administration has issued a warning to dog owners who feed Fido Darwin’s Natural Pet Food.

According to the FDA website, some samples of the dog food tested positive for salmonella.

The lots you should avoid feeding your dog include:

Product Lot Code Manufacture Date
Darwin’s Natural Pet Products Natural Selections Chicken Recipe with Organic Vegetables for Dogs 5309(11)181019 October 19, 2018
Darwin’s Natural Pet Products Natural Selections Chicken Recipe with Organic Vegetables for Dogs 5375(11)181106 November 11, 2018
Darwin’s Natural Pet Products Natural Selections Turkey Recipe with Organic Vegetables for Dogs 5339(11)181026 October 26, 2018

Dog owners who have the above lots of Darwin’s Natural Pet Food should throw them away “in a secure container where other animals, including wildlife, cannot access it.”

 

RASFF Alerts – Animal Feed – Salmonella – Fish Meal – Organic Soy Bean Presscake

RASFF-Logo

RASFF – Salmonella (in 4 out of 5 samples /25g) in fish meal from Mauritania in Spain

RASFF – Salmonella enterica ser. Tennessee (presence /25g) in organic soy bean presscake from the Netherlands in Sweden

Research – Bacteria can travel thousands of miles through the air on its own

Earth.com

A new study is providing evidence that bacteria can fly thousands of miles through the air without depending on people and animals for transport. According to the experts, their new “air bridge” theory may explain how harmful bacteria have the same antibiotic resistance genes in common.

Study senior author Konstantin Severinov is a principal investigator at the Waksman Institute of Microbiology and a professor of Molecular Biology at Rutgers University.

“Our research suggests that there must be a planet-wide mechanism that ensures the exchange of bacteria between faraway places,” said Professor Severinov. “Because the bacteria we study live in very hot water – about 160 degrees Fahrenheit – in remote places, it is not feasible to imagine that animals, birds or humans transport them. They must be transported by air and this movement must be very extensive so bacteria in isolated places share common characteristics.”

USA – FDA finds Salmonella in three lots of Darwin’s raw dog food; cautions pet owners

Food Safety News

The U.S. Food and Drug Administrations (FDA) cautioned pet owners not to feed certain Darwin’s Natural Pet Products raw dog foods after finding Salmonella in the products.

FDA collected and analyzed unopened packages from the products in response to a consumer complaint.

The products were manufactured by Arrow Reliance, Inc. (Arrow), a company based in Tukwila, Washington and doing business as Darwin’s Natural Pet Products.

The products that are affected by FDA’s alert to pet owners are:

  • Darwin’s Natural Pet Products Natural Selections Chicken Recipe with Organic Vegetables for Dogs: 5309(11)181019, manufactured on October 19, 2018
  • Darwin’s Natural Pet Products Natural Selections Chicken Recipe with Organic Vegetables for Dogs: 5375(11)181106, manufactured on November 11, 2018
  • Darwin’s Natural Pet Products Natural Selections Turkey Recipe with Organic Vegetables for Dogs: 5339(11)181026, manufactured on October 26, 2018

Arrow has taken steps to remove these products from the marketplace, but has not issued a public notification, according to the FDA. The agency is concerned that the company’s customer notifications may not be effective, and is working with Arrow on recalling the remaining products from these lots.

In a statement released on its website today, Darwin’s expressed its disappointment in FDA’s decision to issue a public warning. The company also asserted its belief that its products do not pose any danger to either humans or pets, and stated that it had received no medical reports of illnesses attributable to these meals.

Animals infected with Salmonella may suffer symptoms that include vomiting, diarrhea (sometimes bloody), fever, loss of appetite and decreased level of activity. An infected animal may not exhibit any symptoms but may still shed the bacteria in its feces, passing the infection to human companions.

Salmonella can cause illness and death in humans and in animals. People infected with Salmonella may develop diarrhea, fever and abdominal cramps. The elderly, the very young, and individuals with weak immune systems are more prone to suffering severe symptoms, including secondary infections in other organs.

Research – Ejecting flagella could help microbes save energy during nutrient depletion

Science Daily

In favorable conditions, many bacteria propel themselves to food sources and other sites of interest using whip-like molecular propellers known as flagella. However, according to new research, members of the bacterial class Gammaproteobacteria eject their flagella when nutrients are scarce.

USA – Legionnaires’ Disease Outbreak Linked to Christmas Mountain Resort

Outbreak News Today Legionella_Plate_01

Three people have been diagnosed with Legionnaires’ disease and one person has died following stays at the Christmas Mountain Resort in Wisconsin Dell. At this time, the local health authorities are investigating the outbreak.

As the investigation unfolds, a representative for the resort told the local media that some of their accommodations did indeed have Legionella present. “After testing, we found that the water supply in certain units had been affected and, subsequently, tested positive for the bacteria,” the spokeswoman said. The resort claims to be telling prospective guests about the disease, but thus far denies that the confirmed illnesses occurred on their property – despite the fact that all of those who are ill stayed at the resort within 2 weeks of their illnesses.

USA – New Dates For Implementing Agricultural Water Produce Safety

Food Poisoning Bulletin Eurofins Food Testing UK

FDA’s Commissioner Dr. Scott Gottlieb and Deputy Commissioner Frank Yiannas have addressed advancing new tools and science for produce safety via agricultural water, and have set new dates for implementation. The two E. coli O157:H7 outbreaks that were linked to romaine lettuce in 2018 were allegedly caused by contaminated agricultural water.

RASFF Alert – Animal Feed – Enterobacteriaceae – Dog Chews

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RASFF – too high count of Enterobacteriaceae (14900 CFU/g) in dog chews from China in Sweden

Research – Does physical state of farm housing and milking practices affect total bacteria and somatic cell count of cow milk?

Wiley Online

Abstract

The study determined the effect of physical state of farm housing on total bacteria and somatic cell count (SCC) of cow milk. Milk records collected at Dairy Services Zimbabwe were used. Effects of physical state of ceilings, doors, ventilation, walls, drains, fly‐proofs, windows and roof type on total bacterial count (TBC) in milk, and SCC were determined using general linear models procedure. Poor physical state of ceilings, doors and floors in milking parlors, wash rooms and bulk tank rooms result in high TBC and SCC in milk (p < 0.05). Poor ventilation in the bulk tank room results in high TBC in milk (p < 0.05). Floors, doors, and ceilings of milking houses should be kept in sound condition and good repair in order minimize TBC and SCC in raw milk.

Practical applications

Understanding how physical state of farm houses and management practices affect total bacterial count and somatic cell count in fresh milk enables farmers and regulatory agencies to put in corrective action to reduce bacterial contamination of milk at farm level. This helps keep the population of disease causing bacteria in raw milk, which is widely consumed by human beings, as low as possible. It also helps reduce contamination by some resistant bacteria that might survive processing and cause further defects in milk products. The shelf‐life of the milk and its products is, thus, improved. Reducing bacterial and somatic cell count in raw milk also helps the milk producers to score high milk grades on the market and, thus, fetch high prices.