By DAVID RAINER
Alabama Department of Conservation and Natural Resources
As a turkey hunter, I am keenly aware of the threat posed by
sneaking through the Alabama woods. And I’m not talking about the danger of
encountering a member of the serpent family.
I’m talking about something much, much smaller but possibly
just as harmful.
It’s the family of ticks that turkey hunters dread each
spring, and the prevalence of disease-carrying ticks is becoming more evident
each year.
Emily Merritt, a research associate at Auburn University’s
School of Forestry and Wildlife Sciences, has been working on a project, with
funding assistance provided from the Wildlife and Sport Fish Restoration
Program (Pittman-Robertson) through the Alabama Division of Wildlife and
Freshwater Fisheries (WFF), since 2015 to determine the species of ticks in
Alabama and their ranges.
Merritt said a study on ticks and tick-related illnesses
hadn’t been done since the early 1990s, and it was very limited in scope.
The study that started in 2015 was to update and expand that
research to include field collection sites for ticks.
“We collected ticks once a month for a year,” Merritt said.
“We were all over the state. We also worked with WFF wildlife biologists to
collect ticks off of deer for all three years and with the USDA (Department of
Agriculture) to get ticks off of raccoons for two years.”
The most commonly collected ticks included the Lone Star
tick, the Gulf Coast tick, the black-legged tick (aka deer tick) and the
American dog tick.
The Lone Star tick is the most common tick in Alabama and
can transmit a host of diseases, including the alpha-gal red meat allergy, Southern
rash disease (a Lyme-like illness), tick paralysis and spotted fever diseases
that are closely related to Rocky Mountain spotted fever. A white dot in the
middle of the tick’s back is the reason for the Lone Star name.
“We found that the Lone Star tick and the Gulf Coast tick
are the most aggressive,” Merritt said. “They hunt down their prey. Some ticks
sit and wait, but the Lone Star and Gulf Coast ticks will actively seek out
hosts. Turkey hunters complain that when they’re hunting they can actually see
ticks crawling to them. Usually, that’s the Lone Star tick. I’ve also heard it
called the turkey tick.”
Merritt said the Lone Star tick is found primarily in
hardwood stands, while the Gulf Coast tick, which is a little larger and
transmits similar diseases, is found primarily in more open areas with shrubs.
“The Gulf Coast tick likes areas like new clear-cuts, and
they are found in controlled burn areas,” she said. “These are harsh, hot
environments where you don’t often find ticks, but the Gulf Coast tick loves
it.”
The tick that has gained the most notoriety because of its
association with Lyme disease is the black-legged tick.
“It is the main culprit for spreading Lyme disease, but it
also can spread other illnesses, like anaplasmosis, ehrlichiosis and
tularemia,” Merritt said. “We find black-legged ticks equally in pine and
hardwood stands.”
Merritt said the American dog tick also can transmit all the
diseases associated with the other tick species.
“As the name implies, they bite dogs a lot,” she said. “We find
them in people’s backyards, especially if they’ve got a nice, green lawn and a
nearby wooded area. Obviously, people’s dogs are at risk. If their kids play in
the backyard or if you’re gardening or landscaping in the yard, people can come
in contact with the American dog tick.”
At one time, the Centers for Disease Control (CDC) insisted
that Lyme disease was limited to the Northeast U.S., with a concentration of
the disease around Lyme, Conn. In recent years, the presence of Lyme-like
disease (Lyme borreliosis) has been acknowledged in Alabama.
“Lyme disease refers to one specific bacteria,” Merritt
said. “Lyme borreliosis indicates there is a host of similarly related bacteria
that cause illness in Alabama.
“Another thing we hear from doctors is there is no Rocky
Mountain spotted fever here. That’s not true at all. The Alabama Department of
Public Health (ADPH) has been tracking this. The problem with the CDC and other
health agencies is they don’t consider it much of an issue down here. But it
definitely is an issue.”
In fact, a graphic from ADPH shows that spotted fever-type
illnesses have skyrocketed in recent years compared to the other tick-related
illnesses.
“People are getting sick from ticks down here,” Merritt
said. “So it’s counterproductive for those agencies to say it’s rare. If you
are an outdoors person your chances of coming in contact with these ticks is
pretty decent. There is definitely a risk.
“One of the reasons I’m trying to get the word out, and when
we publish our research (later this year), is we really need doctors to
recognize that these tick-borne illnesses are here in Alabama.”
One aspect of Merritt’s research includes a survey conducted
through the Alabama Department of Conservation and Natural Resources. The
survey was sent to hunters and anglers to ask about their experiences,
knowledge of and costs associated with ticks and tick-borne illnesses.
For those who spend time outdoors, Merritt said the project
research found that the most effective deterrent for tick attachment is a spray
that contains permethrin.
“You don’t apply it to your skin,” Merritt said. “You spray
it on your clothes, boots, hats, socks, backpacks, basically any fabric. When I
go camping, I spray my tents and tarps with it. Depending on what brand you
get, it will last anywhere from two weeks or two washings to six weeks and six
washings.
“More so than bug spray, we found that the products with
permethrin significantly reduced the amount of ticks we encountered. It also
works well on other biting insects like chiggers and mosquitoes.”
Although the
likelihood of contact with ticks is higher during the warmer months, Merritt
said the insects are active year-round in Alabama.
“Be on the lookout, not only on pets, but your children,
your loved ones and yourself,” she said. “If you go outside, there is the
potential to come in contact with ticks. When you come back inside, check your clothes
and gear immediately to see if there are any crawling ticks on you, your pets
or children. Then take it a step further and check your body thoroughly for
ticks. If you need to use a mirror or a partner, do that. Ticks can hide in all
sorts of areas that are hard to see.
“And the longer a tick is attached, the better the chances
are to get a tick-borne illness if that tick is harboring that illness.”
If you do find a tick attached to your body, Merritt said
don’t haphazardly try to remove the insect.
“Don’t try to pick it off with your fingers or burn it off
with a match or anything like that,” she said. “Get tweezers and get as close
to the skin as you possibly can. Firmly grasp the tick where it attached to
your body and start pulling with steady, even pressure until it eventually
releases. It might be uncomfortable and a little painful, but you want to get
that tick off as soon as you can.”
Merritt said tick-borne illnesses may cause symptoms as
early as a couple of days, but symptoms could also occur as late as a couple of
months after the exposure.
“If you start to experience flu-like symptoms, like aches
and pain, or you see an expanding red rash, sometimes spotted and sometimes
circular, you need to see a doctor,” she said. “It’s normal for a bite to be
red, but if you see an expanding rash or it seems to be spreading to other
parts of your body, that’s a clear indication that you do have a tick-borne
illness.”
Merritt said if the tick is found it can be saved for
testing by taping it to an index card, placing it in a freezer bag and storing
it in the freezer.
“But don’t wait for test results,” she said. “If you think
you have a tick-borne illness, your doctor should go ahead and start treatment.
For most tick-borne illnesses, that involves treatment with antibiotics. For
tick paralysis, it’s removal of the tick. For the alpha-gal allergy there is no
treatment. You just have to avoid eating red meat, and that’s terrible.”
For more information,
go to www.aces.edu/pubs/docs/A/ANR-2315/ANR-2315.pdf
or www.alabamalymedisease.org,
the Alabama Lyme Disease Association’s website.
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Lone Star ticks are common in Alabama and vary greatly in size depending on age.
Photo by Micaela Finney
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