joe the tick

November 29, 2009

Joe the Tick’s Weekly Twitter Updates for 2009-11-29

Filed under: Lyme Disease Tweets — Tags: , , — joethetick @ 1:35 pm

November 22, 2009

Joe the Tick’s Weekly Twitter Updates for 2009-11-22

Filed under: Lyme Disease Tweets — Tags: , , — joethetick @ 1:35 pm

November 21, 2009

Nurses with Lyme disease Form Southern Oregon Lyme Disease Support Group

By Bill Kettler
Mail Tribune

Put two nurses with 70 years of combined experience in the same room and chances are they’ll find plenty to talk about.

When both have Lyme disease, the conversation transcends the usual shop talk.
The first meeting of the Southern Oregon Lyme disease support group has been scheduled for 6:30 to 9 p.m. Thursday in the Smullin Center, Room 35, Rogue Valley Medical Center, 2825 E. Barnett Road, Medford.

For more information, call 944-5068 or 879-0222. For general information about Lyme disease in Oregon, contact the Oregon Lyme Disease Network at 541-312-3081 or visit the Web site at www.oregonlyme.org.

Sharon Lee of Eagle Point was infected some 30 years ago in California, when nobody on the West Coast knew much about the strange tick-borne disease that’s difficult to diagnose and produces a wide range of symptoms among its victims.

When Judi Johnston of Ashland came down with Lyme during the past year, she realized the Southern Oregon medical community still knows relatively little about the disease.

“I don’t know what made me more upset,” Johnston says. “Personally, not being able to find the (treatment) resources, or professionally, knowing the resources aren’t here.”

Lee and Johnston plan to use their nursing experience and training to assist Rogue Valley residents who may not even know they have Lyme disease. They’re organizing a support group to help local people determine whether they’re infected, and steer them to physicians who can give them appropriate care.

“There’s far more Lyme disease than is being recognized,” says Johnston, a nurse for more than 30 years. “And we don’t have Lyme-literate physicians in this part of the country.”

The group’s first meeting is scheduled for Thursday at the Smullin Center on the campus of Rogue Valley Medical Center.

The bacterium that causes Lyme disease is transmitted to humans by certain species of ticks, including the blacklegged tick (Ixodes pacificus), which thrives in Southern Oregon and California. The bacterium is also carried by tick nymphs, which are so tiny people often fail to realize they may have been bitten.

Johnston says she “never did see the tick,” that infected her.

Lee describes the bacterium itself as “a stealth organism” that evades the body’s natural defense mechanisms. If it establishes itself in the body over time, “your immune system can’t even find it,” she says.

Symptoms vary widely from person to person. The bacterium may attack the joints, the heart, the brain or other parts of the nervous system. Lyme has been confused with a number of other diseases, including multiple sclerosis, fibromyalgia, chronic fatigue syndrome, amyotrophic lateral sclerosis and even Alzheimer’s.

“Some people can be sidelined and in a wheelchair,” says Lee, who retired to Eagle Point after 45 years in nursing. “Others can respond (to treatment) and do pretty well.”

Ticks often carry a number of other infectious agents, and Lee says researchers now believe the wide variety of symptoms associated with Lyme may be related to those other tick-borne diseases.

She says early diagnosis is critical for effective treatment, but tests don’t always provide conclusive proof of infection. Some people produce a rash with a characteristic bulls-eye pattern soon after they’re infected, but others may not, further complicating the diagnostic process.

Lee says she and Johnston hope to recruit a local physician who might be willing to learn more about Lyme disease so that local people can get effective treatment without traveling to California.

“We want this to be more than a support group,” Johnston says. “We want to educate people, too.”

Reach reporter Bill Kettler at 776-4492 or e-mail bkettler@mailtribune.com

Lyme Disease Vaccine? Tick Saliva Found to Protect Mice from Lyme Disease

Filed under: Lyme Disease, Lyme Disease News, Lyme Disease Research — Tags: , , , — joethetick @ 3:46 pm

ScienceDaily — A protein found in the saliva of ticks helps protect mice from developing Lyme disease, Yale researchers have discovered. The findings, published in the November 19 issue of Cell Host & Microbe, may spur development of a new vaccine against infection from Lyme disease, which is spread through tick bites.

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.

The Lyme bacterium known as Borrelia burgdorferi is transmitted by ticks. When it moves through the tick, it is coated with a tick salivary protein known as Salp15. The Yale team injected Salp15 into healthy mice and found that it significantly protected them from getting Lyme disease. When combined with outer surface proteins of B. burgdorferi, the protection was even greater.

Lead author Erol Fikrig, M.D. of Yale School of Medicine and Howard Hughes Medical Institute said, “The interaction between the Lyme disease agent and ticks is very complex, and the bacteria uses a tick salivary protein to facilitate infection of the mammalian host. By interfering with this important interaction, we can influence infection by the Lyme disease agent.”

Several years ago there was a Lyme vaccine on the market that utilized just the outer surface proteins of the bacteria. It was taken off the market in 2002, and to date no other antigen has been tested in phase III clinical trials.

The authors 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 so, then this paradigm, described with the Lyme disease agent, is likely to be applicable to these illnesses. 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.”

Other researchers were Jianfeng Dai, Penghua Wang, Sarojini Adusumilli, Carmen J. Booth and Sukanya Narasimhan of Yale School of Medicine, and Juan Anguita of the University of Massachusetts. This work was support by grants from the National Institutes of Health.

November 18, 2009

Biolabs Multiplying Like Rabbits: A Clear and Present Danger

Filed under: Lyme Disease — Tags: , , , , , — joethetick @ 10:25 am

Earlier this year, during an audit of the nation’s largest Level-4 BioSafety Lab (BSL-4) at Fort Detrick in Frederick, Maryland, 9,220 vials of ebola, anthrax, botulinum, equine encephalitis virus, and other deadly germs were discovered in the proverbial dusty old storage area. No one even knew the vials existed and thus no one knows for sure whether any are missing.

But not to worry, according to officials. The vials were old and lost long before new documentation procedures were put in place. Besides, the lab is being expanded and updated with the latest security devices. Such reassuring mantras resound after every oil and chemical spill, radioactive discharge from nuclear power plant (more frequent than generally realized), black-market uranium sale, and mishandled nuclear bomb: “It may seem dangerous, but trust us – there wasn’t enough poison to hurt a fly and besides, we’re sure we recovered everything.”

Very likely – hopefully – at Fort Detrick they did. But the most important question remains unanswered: can any BSL-4, the labs with the deadliest, often highly contagious, bacteria and viruses, ever be truly fail-safe? After all, at some point that old storeroom in Fort Detrick was state-of-the-art. Human error applies not only to daily procedures, but to equipment that always seems so pristine when new. Proponents of BSL-4s argue that without these research labs we stand defenseless against a natural outbreak of disease or bio-terrorist attack. And, they say, the labs are so safe that the chances of a disease-spreading breach approach zero.

The problem is, neither of these assertions is strictly true. Vaccines against Level-4 Ebola and Marburg viruses have been developed in Level-2 labs by inserting their DNA into non-pathogenic viruses that can trigger immune responses just as definitively as the deadly pathogen. Scientists can therefore develop vaccines against deadly bacteria and viruses without actually handling the germs themselves. And the Level-4 labs may very well make our world more dangerous rather than safer and more secure. However modern and up-to-date a laboratory, it is still subject to human error, violence, neglect, and systemic breakdown. The Foot and Mouth Disease (FMD) outbreak in Great Britain in 2007 was due, according to the British government’s inquiry, to “poor training and incompetence” and a “creeping degradation of standards”, while the 2001 outbreak was attributed by the government to an employee who smuggled out a vial of FMD from his lab.

“Creeping degradation” is probably responsible for most industrial and infrastructural accidents. The case of Plum Island off the northeast coast of Long Island, New York, home to a now-closed Level-4 lab, illustrates the problem. Many believe Plum Island responsible for Lyme Disease, borne by deer swimming five miles from the island to the Connecticut coast near Lyme where the first outbreaks occurred. Lab 257 by Michael Carroll details how protocols and procedures at Plum Island eventually unraveled. Countless small oversights and flaws in equipment, procedures, and human judgment tend to build up over time to generate distinct vulnerabilities until an otherwise controllable opportunistic event spins out of control.

It is often claimed that BSL-4s have a flawless safety record, although the 9,220 recovered vials seem to undermine that claim. More importantly, only two Level-4 labs have operated in the United States until recently and their documentation has been in disarray, as Fort Detrick’s spokesperson admitted to explain how the vials went missing.

There is, in fact, no real documentation that BSL-4 labs have been operating safely. As with the oft-ignored low-level radioactive releases from nuclear power plants, small accidents can be ignored or covered up; it takes a major disaster to enter public consciousness. Recently, the city of Boston had to admit that the news of the infection of three BSL-2 lab workers in a lab had been suppressed by the lab and city officials. Mayor Menino assured us that if the public had been in danger, they would have told us sooner. Granted, Level-2 labs are not built to be foolproof and the diseases harbored there are far milder than in BSL-4s, but when infection at a BSL-2 is kept under wraps, would a more serious threat have been publicized, especially with no real emergency response mechanism in place in most communities?

According to the Sunshine Project, “Three Texas A&M University biodefense researchers were infected with the biological weapons agent Q Fever in 2006. The infections were confirmed in April of that year, but Texas A&M officials did not report them to the Centers for Disease Control (CDC), as required by law. Instead, Texas A&M officials covered the infections up until now, illegally failing to disclose them despite freedom of information requests dating back to October 2006.” This was in addition to a brucella infection at the lab, news of which was also withheld from the public. In response to these events, the Center for Disease Control ordered the lab to shut down its bioweapons research, citing – in a detailed report issued August 31, 2007 – a host of violations of basic safety protocols at the lab. Other accidents at BSL-3s have recently occurred at the University of New Mexico (anthrax, 2003 and unidentified pathogen in 2004); Medical University of Ohio (2004, Level-3 Valley Fever); University of Chicago (2005, Level 3, possibly anthrax or plague); and UC Berkeley (2005, Level 3 aerosolized, weaponized Rocky Mountain Spotted Fever). From 2005-2006, University of Wisconsin at Madison (UW) researchers made and manipulated copies of the Ebola virus genome even though the federal government stipulates that such research must take place at a BSL-4. (It should be noted that Level-3 pathogens can be every bit as dangerous as Level 4s and include many of the more contagious germs; it’s just they’ve been shown to respond to antibiotics). All these cases occurred after 2001, when the through-the-mail anthrax attacks supposedly led to tighter security and more sophisticated protocols at BSL-3s and BSL-4s.

The dangers posed by biolabs often fly under the radar, but that may be changing. The General Accounting Office, in a report released this past September 21st, stated that the rapid – and often unregulated – proliferation of Level 3 and Level 4 labs places the public at significant risk. The public would do well to question the knee-jerk “security at all costs” policy of the federal government which threatens to build up stores of the world’s deadliest organisms across the United States. As for proponents’ arguments that the labs are absolutely safe and absolutely necessary, we shall address them soon in another post.

Source: huffingtonpost.com

Imaging Technique Leads to Better Understanding On How Ticks Transmit Lyme Disease

Filed under: Lyme Disease, Lyme Disease Research — Tags: , , — joethetick @ 10:21 am

ScienceDaily (Nov. 17, 2009) — Using a powerful microscopic live imaging technique, a research team led by Dr. Justin Radolf, professor in the Departments of Medicine and Genetics and Developmental Biology at the University of Connecticut Health Center, has discovered the way ticks transmit Lyme disease to humans is different than previously thought. The research is published online in the Journal of Clinical Investigation.

Lyme disease is caused by transmission of the spirochete bacterium Borrelia burgdorferi from ticks to humans but for a number of technical reasons, the transmission process has been difficult to study.

Radolf and researchers Star Dunham-Ems and Melissa Caimano tried a novel approach. They genetically modified a virulent strain of B. burgdorferi to express green fluorescent protein (GFP). “This bacterium glows and can be followed in the living state as it migrates through the tick to the mouse during feeding,” explains Radolf. “Then using a powerful microscopic technique called confocal microscopy, we discovered that the transmission process unfolds quite differently than previously believed.”

Spirochetes in culture are highly motile, and it is widely believed that during feeding, the spirochetes in the midgut rapidly move through the wall of the midgut. But Radolf and his team found that during much of the feeding period, the spirochetes do not move. They actually divide and surround the cells of the midgut lining or epithelium, forming tight networks. “We also found that the reason they don’t move is that the tick midgut secretes molecules that actually inhibit the motility of the spirochetes,” explains Radolf.

Eventually, spirochetes in the networks reach the base of the epithelium by completely surrounding the epithelial cells. At this point, they become motile, detach, and completely penetrate the midgut, although in very small numbers. These few bacteria then swim to the salivary glands, which they penetrate en route to the mouse. “So rather than being entirely motility-driven, dissemination of spirochetes within ticks actually happens in two phases,” says Radolf, “which is something we didn’t know before.”

Lyme disease is the most prevalent vector-borne infection in the United States with more than 25,000 new cases reported annually. A substantial percentage of these cases occur in Connecticut. “The improved understanding of the transmission process revealed by our study could lead to novel strategies for controlling the spread of Lyme disease,” says Radolf.

November 14, 2009

How To Pest-Proof Your Yard Naturally

Filed under: Lyme Disease, Lyme Videos — joethetick @ 9:09 pm

Rid your backyard of annoying bugs without exposing your family to chemicals and toxins.

How To Repel Ticks Naturally

Filed under: Lyme Disease — Tags: , , , — joethetick @ 9:05 pm

Protect yourself from Lyme disease, naturally without exposing yourself to a lot of pesticides.

Sara Marie’s Lyme Disease Story

Filed under: Lyme Disease, Lyme Fighters, Lyme Stories, Lyme Videos — Tags: , — joethetick @ 8:55 pm

Timothy Grey invites Dr. Allen Steere to see “Under The Eightball”

Director Timothy Grey invites Dr. Allen Steere to see his new film “Under The Eightball“. A documentary about the Origins of Chronic Lyme Disease.

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