In an encouraging development yesterday @CDC_NCEZID representative Ben Beard made an important announcement--a new "national strategy" for vector-borne diseases. I'll explain in a thread 1/n lymedisease.org/framework-vect… via @Lymenews
The Kay Hagan Tick Act, passed in 2019, called for @hhs to develop a national strategy to address issues related to vector-borne diseases. The Lyme community fought hard for the passage of the #TICKactlymedisease.org/tick-act-appro… via @Lymenews 2/
There are many challenges to prevention and control of vector-borne diseases including a lack of interconnected, quality data. There currently exists clinical, surveillance, environmental, animal/wildlife, and meteorological data that cannot easily be linked or shared. 4/
One of the things the Federal Tick-Borne Disease
Working Group has been working on since 2017 is to identify gaps & needs in the diagnosis, treatment and control of tick-borne diseases. 5/ hhs.gov/ash/advisory-c…
This week the HHS releases “A National Public Health Framework for the Prevention and Control of Vector-Borne Diseases in Humans.” with the following 5 stated goals: 6/
I sat on the TBDWG sub-committee that worked hard to develop a nationwide tick control plan, something the U.S. has never had before. So, I’m particularly excited to see our concerns reflected in the new framework. 7/
You can read our report here: Tick Biology, Ecology, & Control Subcommittee Report to the TBDWG 8/ hhs.gov/ash/advisory-c…
I know many in the tick-borne disease community who will be happy to see they have also made improved diagnostics and treatment a priority. 8.
The report actually addresses patients with chronic symptoms: "For bacterial, rickettsial, and parasitic diseases for which treatments do exist, people may still suffer ongoing symptoms, severe disease, and death. New treatment options may help reduce disease impacts." 9/
At the end of the #TBDWG15 meeting, Ben Beard went out of his way to personally thank patient representative Pat Smith @LymeDiseaseLDA and other members of the TBDWG for their contributions. 10/
I realize we've got a long way to go, but for me it’s gratifying to see these federal agencies coming together and recognizing the importance of tick-borne diseases and the TBDWG. Let’s hope the progress continues. /end
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@Lymenews The largest study, on which the CDC based its recommendation, showed one thing—a single dose of doxycycline reduced the incidence of rash in a small group of people. That’s it. (Nadelman 2001) 2/
@Lymenews End point: "Erythema migrans occurred at the site of the tick bite in 8 of the 247 subjects in the placebo group (3.2 percent), as compared with 1 of the 235 subjects in the doxycycline group (0.4 percent, P<0.04)" Seven fewer rashes! nejm.org/doi/10.1056/NE…
@Lymenews The ticks in the Nadelman study were identified by an entomologist. As the authors pointed out, patients and clinicians are not skilled at distinguishing I. scapularis from other ticks and arthropods, and even from scabs or debris. (Sood 1997) 4/
"In the USA, B. burgdorferi often disseminates in the blood during the first few weeks of infection in a process that requires the binding of Borrelia surface adhesins to host integrins on the vascular endothelium28–30. " 2/
"As shown in mice, the spread of B. burgdorferi through the vasculature or lymphatics is dependent on the inter-actions of spirochaetal surface molecules and endothe-lial cell membrane proteins." 3/
Thread: A major barrier to progress in understanding the neurologic manifestations of #LymeDisease has been a lack of a tractable laboratory animal model to evaluate the mechanisms of central nervous system pathogenesis.
For decades we have seen study after study of Lyme arthritis. As it turns out the most frequently reported Lyme symptoms are neurological symptoms: memory loss and cognitive impairment, sleep impairment, psychiatric manifestations, headaches, neuropathy and more. 2/
This is the first study, to my knowledge, that shows how Borrelia burgdorferi gets into the central nervous system, how the immune system responds, and how the bacteria adapt to the immune system. #Lyme
Meet the researcher Catherine Brissette, Ph.D. globallymealliance.org/meet-researche…
The geothermal features in Yellowstone are amongst my top 10 favorite sites on this planet. Here’s a bit of #microbio history on the PCR test I’d like to share.
Pictured: Grand Prismatic at the Midway Geyser Basin @YellowstoneNPS
“Until the 1980s, our ability to study DNA was limited. Things we take for granted today such as DNA fingerprinting to identify criminals, DNA medical diagnoses, DNA-based studies of nature, and genetic engineering did not exist.”
“But in 1985, the polymerase chain reaction (PCR) was invented. PCR is an artificial way to do something that living things do every day—replicate DNA. PCR is the rocket ship of replication, because it allows scientists to make billions of copies of a piece of DNA in a few hours.
Thread. @Sermo survey of 6,227 physicians worldwide: 85% of US physicians report #COVID19 testing takes 2-5 days or longer, while nearly half of international physicians report testing is completed within just 24 hours.
Survey @Sermo says, 91% of US physicians and 83% of international physicians say the status of #COVID19 testing is far below what is needed.
Survey @Sermo says "Physicians most request life science firms develop new rapid tests for COVID-19, followed by new drugs that offer immunity to front-line workers and accelerate efforts to test existing drugs to treat #COVID19"