RI, MA EHS Pest Control Blog

HantaVirus Found in Trapped Rodents

Six rodents trapped during routine monitoring in the last week in North County and East County have tested positive for the potentially-deadly hantavirus.

Infected rodents rarely pose a danger to people if they are in the wild and there has been just one non-fatal human case in the county, in 2004. But people can inhale hantavirus by stirring up rodent droppings, then get sick and even die. There is no treatment, vaccine or cure for hantavirus infections, which are deadly in 38 percent of cases.

“People should never sweep up or vacuum rodent droppings or nesting material when they find it,” said Jack Miller, director of the County Department of Environmental Health. “Instead, they should ventilate closed areas for at least 30 minutes, and then carefully use bleach or a full-strength disinfectant before removing them.”

The best way people can prevent the disease is to keep mice out of houses, garages and sheds by sealing holes larger than the size of a dime, County officials said.

Hantavirus can cause hantavirus pulmonary syndrome (HPS), which begins with flu-like symptoms but can grow into severe breathing difficulties and even death.

The rodents that tested positive during the last week included: two deer mice from Campo; one deer mouse each from Carlsbad and Escondido; one harvest mouse from Oceanside and a vole from Carlsbad. Thirty-seven rodents have tested positive for hantavirus in the county this year, compared to 21 in 2010.

Source: Associated Press

George Williams,
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA

UPDATE: Wal-Mart Deli, Bakery Reopen After Rodent Problem

The deli and the bakery at the Wal-Mart superstore in Lebanon have reopened after being shut down for a rodent problem.

News 8 initially reported the problem on Thursday, Aug. 4. A store spokeswoman said the problem was first discovered at the end of June but that pest control efforts were unsuccessful. The spokeswoman would not say what type of rodent had gotten into the store.

Here is the complete statement the company issued on Thursday:

"Unfortunately it has come to our attention that rodents have found their way into our store in Lebanon, Pa. We are aware of the situation and we are working to resolve this issue.

As part of our commitment to food safety, the bakery and deli remain closed until the problem can be corrected. We’re working with a pest control company, a professional cleaning service and the Department of Agriculture to remedy the situation.

We make every effort to ensure our stores are clean and pest free and apologize to our customers for this inconvenience. Once the Department of Agriculture inspects our store and gives us the okay to re-open, we will."

On Friday, a company spokesperson updated the situation, saying the store had passed the inspection and the deli and bakery are open for business

Source = wgal.com

George Williams
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA

RESTAURANT TO BE SHUT DOWN OVER RODENT DROPPINGS

Call it a big but disgusting find for kitchen cops in Brownsville.

An eatery is busted with rodent droppings “all over” the kitchen area.

The New Courthouse Coffee Shop on 964 East Harrison scored 38 demerits.

It was the dirtiest kitchen featured this week by the Food Patrol.

Food handlers were caught wearing open-toe shoes and not wearing hairnets or washing hands.

A health inspector noted on the report how there were “a lot of rodent droppings all over the kitchen.”

Dirty photos of the kitchen area showed trails of droppings on the food prep table and torn bags of food believed to be from rodents.

The Food Patrol confronted the owner’s sister who was present during the health inspection.

Gracie Gutierrez admitted the kitchen was dirty.

She blamed a worker for not doing her “job.”

Food Patrol fans who saw the dirty photos called for the coffee shop which serves food to judges and attorneys to be shutdown.

Source = Valley Central.com

George Williams
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA

More Rodents Carrying Hantavirus Found

Six more rodents trapped by County Vector Control technicians last week have tested positive for the sometimes-deadly hantavirus, County officials said this week.

The rodents, four Harvest mice and two California Meadow Voles, were trapped in Fairbanks Ranch and northern Escondido near the San Luis Rey River bringing this year’s total to 16 rodents testing positive for hantavirus, a news release stated. In 2010, a total of 21 rodents tested positive for hantavirus.

“Recent rains have created an abundance of food for rodents, which can increase the rodent population,” said County Environmental Health Director Jack Miller. “More rodents can lead to more hantavirus.” People should never sweep up or vacuum rodent droppings and nesting materials. Instead, ventilate closed areas and use wet cleaning methods with a 10 percent bleach solution or other full strength disinfectant. The best way to prevent the disease is to keep mice out of houses, garages and sheds by sealing all holes larger than the size of a dime, the news release stated.

Wild rodents, primarily deer mice, carry hantavirus. People can contract it by inhaling dust particles from rodent droppings and nesting materials that contain the virus. The virus can cause hantavirus pulmonary syndrome (HPS), which begins with flu-like symptoms, but can graduate to severe breathing difficulties and even death, according to the news release. There is no vaccine or specific treatment for hantavirus and the national Centers for Disease Control and Prevention report that HPS has killed 36 percent of all the people known to have contracted the disease.

How to Avoid Exposure:

• Eliminate rodent infestations immediately.
• Avoid rodent infested areas. Do not stir up dust or materials that may be contaminated with feces and urine.
• Clean up rodent droppings and urine using the wet cleaning method described below.

Use “wet-cleaning” methods to prevent inhaling the virus:

• DO NOT SWEEP OR VACUUM INFESTED AREAS.
• Ventilate affected area by opening doors and windows for at least 30 minutes.
• Use rubber gloves. Spray a 10 percent bleach solution (2 tablespoons bleach to 1 cup of water), or other full strength disinfectant onto dead rodents, rodent droppings, nests, contaminated traps, and surrounding areas and let the disinfectant stand for at least 15 minutes before cleaning. Clean with a sponge or a mop.
• Place disinfected rodents and debris into two plastic bags, seal them and discard in the trash.
• Wash gloves in a bleach solution, then soap and water, and dispose of them using the same double-bag method. Thoroughly wash your bare hands with soap and water.

George Williams,
General Manager - Staff Entomologist

Pest Control, RI, Pest Control, MA

(click to enlarge image)

Rodents have lanolin on their fur that causes tell-tale rub marks in heavily traveled pathways. Lanolin is yellow viscous oil in the fur that is made of fatty acids and esters. It allows rodents to squeeze into tight voids & spaces with great ease.

We know that when we do a rodent inspection that this is one of the signs we look for to determine activity. The more frequently traveled in the same area means there will be a buildup of lanolin. To the untrained eye it looks like oil but to us it is an important find that will aid in control because it tells us that it is a rodent highway.

The attached image shows the rub marks leading under a wooden deck.

by Ryan Metterville, Service Specialist

Location = Waltham, MA

I have seen mice stockpile food supplies in wall voids & makes nests in just about everything. Quite often it happens in rodent bait stations once the rodenticide bait has been completely wiped out. In the attached picture you can see that mice completely stuffed insulation into a newly placed station.

They have nesting materials and made the station a home.  Unfortunately for them the dinner is our First Strike rodenticide inside the stations which they have started consuming.

For these mice eating in bed does not make a mess, it kills you!

Matt Lipsett
Inspection Specialist