Beautiful weather brings tick danger
I grew up in a time and place where the accepted norm was to spend every possible moment out-of-doors. My mother gently objected to my lounging on the couch for hours, absorbing books by the stackful, whenever it was sunny and warm outside. But since I grew up in SoCal, it was ALWAYS sunny and warm. I did ruin my eyesight, so she was probably right about that. And although I read voraciously in the summer (and every other time of the year), I still managed to make it outside to swim and hike with friends pretty much every day as a kid.
So when spring comes tumbling in, bringing beautiful outdoorsy weather, should you still be sending your kids outside to play? Have things changed now that you are aware of the dangers of Lyme? Now that you know you and your loved ones are only one tick-bite away from it?
This spring, reports are already piling up in regional news, warning that this is likely to be a heavy tick season. The ticks are early and plentiful.
One suggestion for preventing Lyme is to advise your kids not to sit on the ground. Now, how realistic is that? For kids, part of the allure of playing outside is the opportunity to investigate the bugs and other critters crawling on the ground. And when you're little, how else can you eat your snacks, play tic-tac-toe in the dirt, examine the fluttering moth you just caught in your hands, if not sitting on the ground? And what about toddlers who are still getting their sea-legs, and end up sitting more than walking?
One thing that really bugs me is when I read, over and over in various articles, that ticks must be embedded for 24 hours or so in order to infect the person they bite. While that may be a comfort to read, there is no scientific evidence to support it. Prevention is the very best medicine, not wishful thinking.
Aside from prevention, early detection is still the most important thing when it comes to having been exposed to ticks. Bear in mind, tick bites don't hurt. This is because the tick injects a sort of anaesthetic with the bite that will numb the area, so you won't feel it. Perform regular tick checks on yourself and your kids, especially after time spent playing outside. Take the time to be careful and diligent. Remove ticks before they have a chance to get embedded.
And please tell everybody you know that tick checks are vitally important.
Tick saliva may hold key to Lyme vaccine
What makes this Lyme vaccine different from the one that was taken off the market in 2002?
From a recent post on Science Blog:
"Traditionally, vaccines have directly targeted specific pathogens. This is the first time that antibodies against a protein in the saliva of a pathogen's transmitting agent (in this case, the tick) has been shown to confer immunity when administered protectively as a vaccine."
Apparently the old Lyme vaccine "utilized just the outer surface proteins of the bacteria."
"The authors [of this study] believe this new strategy of targeting the saliva - the 'vector molecule' that a microbe requires to infect a host - may be applicable not just to Lyme disease but to other insect-borne pathogens that also cause human illness."
"We believe that it is likely that many arthropod-borne infection agents of medical importance use vector proteins as they move to the mammalian host," Fikrig explained.
If their scientific hunch proves correct, this study may also have positive implications for treatment of other illnesses that are spread by insects.
"Currently, we are working to determine if this strategy is likely to be important for West Nile virus infection, dengue fever, and malaria, among other diseases."
North Carolina recognizes risk of Lyme
Until recently, many North Carolina residents and physicians have presumed that the risk of getting Lyme within state borders was nonexistent. Casualties have included not only residents who contracted the disease, but also Dr Joseph Jemsek's Charlotte, NC medical practice. (Please note: Dr Jemsek moved his clinic to Fort Mill, SC in 2008.)
Dr Carl Williams performs disease surveillance for the North Carolina State epidemiology department. His office is in the tick-counting business. He says that unfortunately, the risk of contracting a tick-borne illness is nothing new in NC.
"Rocky Mountain Spotted Fever (RMSF) is still a greater risk than Lyme in North Carolina, and you can catch both of them here," says Dr Williams.
Risk of Lyme disease in NC has now been officially acknowledged. "However," he adds, "skepticism is high because counts are low." That is, the numbers of confirmed cases of Lyme are still lower than cases of RMSF. There has been one fatality due to RMSF in North Carolina this year.
"As far as prevention goes," says Dr Williams, "there is nothing new to recommend. The same old tried and true methods are still the most effective."
Cooler weather is no deterrent to ticks, so he recommends that we stay tick-aware at all times of the year. "Just because it's January, for example, don't think you can't take precautions or don't need to. We want people to recognize that there are a variety of ticks here in NC, and that it's important to take care and adhere to preventative measures."
What are those tried and true methods?
"Use DEET on areas of exposed skin, and Permethrin on clothes. Perform tick checks when you come in from an area where you may have been exposed to ticks, and realize that even though you can significantly reduce your chances of getting bitten by a tick, taking these safety measures is really not a guarantee. There is no failsafe mechanism to guarantee that a tick will not get onto your skin, or attach to it."
Video--how to repel ticks
How to Repel Ticks -- powered by eHow.com
This eHow video, posted by a gardener, explains the basics about how to protect yourself and your kids from ticks. She recommends the usual precautions, such as covering up head to toe with multiple layers of clothing. Then she mentions something I hadn't heard before. She suggests that on your hands and face, and any other body parts that aren't covered by clothing, you put on oil.
Her reasoning is that although the ticks are nearly impossible to repel once they've gotten onto your skin, they don't like oil because it causes them to slip, or reduces their success at sinking their sharp teeth into your skin. She says any kind of oil will do -- olive oil, lavender oil, baby oil, etc. She mentions DEET, as well, for its effectiveness as a tick repellent.
She also recommends putting your clothing into a hot dryer as soon as you come in from the garden, woods, forest, or wherever you may have been exposed to ticks. She claims that if you put your clothes into the washing machine, you risk setting them loose in the house. However, the hot temperature of the dryer should kill them.
I think I need to ask Dr Eva Sapi or some of our other Lyme experts about these claims before I believe them wholeheartedly. In our last interview, Dr Sapi told us that the biology graduate students in her University of New Haven Lyme research program couldn't even keep the ticks away using DEET, as they went hiking in the forest for a tick-gathering field trip.
What do you think? Have you ever used this oil trick? Is it effective?
Educate yourself about ticks
Everything you always wanted to know about ticks (but were too chicken to ask) is included in this handbook, the new revised edition prepared by Kirby C. Stafford III, PhD Vice Director, Chief Entomologist of the Connecticut Agricultural Experiment Station in New Haven. It's an 84-page booklet that you can download as a PDF.
Tick Management Handbook
Be wary of misinformation
For example, one piece of advice I've read in a number of places says that you won't get Lyme disease if you pull a tick out of your skin before it's been there for 24 hours. These articles usually do not name their source of information, instead saying, "latest medical research indicates that..."
I wouldn't be so sure. I asked Eva Sapi, Ph.D., who directs the graduate studies in Lyme disease research at the University of New Haven, about this claim. She said there was no evidence to support the "24 hour" rule. She added that personally, she knew field researchers who had contracted Lyme from a tick that had only been embedded for a couple of hours.
Deer ticks and other critters
No. If you are bitten by a tick, you may get Lyme. Your dog cannot give it to you directly. However, you may both get it from the same infected tick. Being bitten by a tick that crawled onto you when you were snuggling or letting her sleep on your bed is more likely. Ticks don't jump, like fleas. They crawl.
These ticks and others can be vectors for Lyme and other bad diseases. Vector means they are animals that can carry disease to humans.
* Deer Tick (Ixodes scapularis)
* Western Blacklegged Tick (Ixodes pacificus)
* Lone Star Tick (Amblyomma americanum)
* Avian Tick (Ixodes auritulus)
Search Term: Lyme disease tick.
According to Eva Sapi, PhD, biologist and director of the Lyme research program at the University of New Haven, Connecticut, the ticks collected in the NE region of the US this year have shown a higher percentage of Lyme infection than in the past. Not only are there greater numbers of ticks than in the past, they're also more likely to be carrying Borrelia burgdorferi, the Lyme bacteria.
Your dog, cat, or horse might inadvertently share a Lyme-infected tick with you. Do be careful and perform regular tick checks all over your body whenever you've spent time with them. If you rarely venture into the woods or onto the seashore without slathering your body with DEET, and make your kids stay in your own yard to play, you may not think you are putting yourself or your loved ones in harm's way. Unfortunately, it's tougher than that to steer clear of tick habitat. Lyme researchers tell me there are plenty of ticks in our own yards, not just in the wild. Where we live in North Carolina, deer regularly walk along the side fence, where they're nicely hidden by the dense woods in the lot next door. I only spot them when I'm spacing out while staring past my computer monitor, out the office windows. One time I thought I saw a whole section of tree branches move away from the tree. On closer inspection, I realized with a start that I had been looking at a beautiful buck with a giant rack. Deer are survivors. They are excellent at adapting to living in urban areas, and they are often covered in ticks.
I'd love to have a yard full of guinea fowl, who find ticks a tasty treat to eat. However, they're super noisy and I'm afraid they'd drive me and the neighbor, who is also a writer and works at home, batty with their cry.
Tell me what you do to avoid (or control) ticks?