Archive for the ‘research’ Category

CAPC Study: Lyme Disease Spreading to Regions Once Thought Low-risk

http://veterinarynews.dvm360.com/capc-study-lyme-disease-spreading-regions-once-thought-low-risk

CAPC study: Lyme disease spreading to regions once thought low-risk

Condition in dogs could signal increasing threat to people, researchers say.

Jan 19, 2019

By dvm360.com staff

DVM360 MAGAZINE

(andriano cz/stock.adobe.com)

The Companion Animal Parasite Council (CAPC) recently released a study that shows that Lyme disease is spreading to regions not previously thought to be at risk for tick-borne disease. States such as Illinois, Iowa, North Dakota, Ohio, Michigan, West Virginia and Tennessee have all seen an increase in the prevalence of Lyme disease, according to a media release discussing the study, which CAPC conducted from January 2012 to December 2016. Results from the study were recently published in Environmetrics.

“The results of this milestone study show increasing risk for Lyme disease in endemic areas and pinpoint regions in the U.S. where Lyme is spreading—areas not historically considered endemic,” says Michael Yabsley, PhD, a professor in the Department of Population Health, College of Veterinary Medicine and Warnell School of Forestry and Natural Resources at the University of Georgia. “This expanding risk of Lyme disease demands heightened vigilance in protecting both our pets and our families.”

New research from CAPC found that the prevalence of Lyme disease is trending up in areas previously thought to be at a lower risk for tick-borne diseases. (Image courtesy of CAPC)

The study was motivated by the increase in Lyme disease cases in the U.S. and, in particular, in states not traditionally considered Lyme-endemic, the release states. Results suggest that:

  • Canine prevalence rates for Lyme disease are rising.
  • Lyme prevalence rates are increasing most in areas where the pathogen has encroached recently.
  • Lyme prevalence in dogs is rising in states traditionally not considered to be of high Lyme risk, suggesting that human risk may also be increasing in these areas, including regions in Illinois, Iowa, North Dakota, Ohio, Michigan and Tennessee.
  • Significant increases in canine Lyme prevalence have been seen in some areas that are not yet reporting significant human incidence. Researchers speculate that canine prevalence is more sensitive to changes in Lyme risk and could serve as an early warning system for changes in human risk.

The study was created to investigate regional trends in the prevalence of antibodies to Borrelia burgdorferi, the disease-causing bacterium of Lyme disease, according to the release. To conduct the research, the CAPC team analyzed more than 16 million Lyme tests from domestic dogs in the U.S. over 60 months. The serologic data was provided by IDEXX Laboratories.

“CAPC research shows the risk for Lyme disease is not static. The way it’s changing varies spatially across the country,” says Christopher McMahan, associate professor in the department of mathematical sciences at Clemson University, in the release.

Crucial in the fight against Lyme, Yabsley says, is year-round tick protection. Different species of ticks are active all 12 months of the year, and ticks that transmit Lyme are active at different times in the year in different regions, the release states. For instance, as you move further south, adult ticks are more active in the winter.

“I’ve been practicing for over 34 years in Nashville where many people don’t think Lyme disease is a concern. But I’ve seen canine Lyme increasing in Tennessee for several years and regularly test and vaccinate for the disease,” says Craig Prior, BVSC, CVJ, a veterinarian and former owner of VCA Murphy Road Animal Hospital in Nashville, Tennessee. “Many people tend to believe that if they don’t go on hikes or spend time in wooded areas, they aren’t at risk for Lyme. Ticks are everywhere—including suburban and gated communities where deer, raccoons, opossum, birds and other hosts frequent back yards. That’s why CAPC recommends year-round tick prevention for dogs—and cats—and regular screening to protect dogs from this debilitating disease that can be extremely hard to treat.

On petdiseasealerts.org, CAPC now provides monthly forecasts for Lyme disease and other tick-borne diseases. It also provides access to monthly canine test results in prevalence maps, a CAPC resource available free online at petsandparasites.org. With more than 21 million canine B. burgdorferi antibody test results collected between 2012 and 2017 in dogs, these maps allow veterinarians, physicians, pet owners and travelers to assess the risk of exposure across the United States and Canada.

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**Comment**

Wisconsin prevalence rate for Lyme, Anaplasmosis, and Ehrlichiosis in pets:  https://capcvet.org/maps/#2012/all/lyme-disease/dog/united-states/wisconsin/  As you can see there are many counties where NO DATA has been collected.  Please remember maps are a very loose guide to what’s happening out there and have been used against patients for decades – denying them accurate diagnosis and treatment.  FYI:  Dane County is at HIGH risk for all 3.

According to independent Canadian tick researcher, John Scott, the reason for this tick proliferation is due to migrating birds and photoperiod, NOT climate change:  https://madisonarealymesupportgroup.com/2018/08/13/study-shows-lyme-not-propelled-by-climate-change/

https://madisonarealymesupportgroup.com/2018/11/07/ticks-on-the-move-due-to-migrating-birds-and-photoperiod-not-climate-change/

Also, infected dogs spread infections as well as ticks when they cross borders:  https://madisonarealymesupportgroup.com/2018/03/09/infected-dogs-with-tbis-spreading-infection-across-borders/  Think of pets as luggage that can and do carry pathogens right into your home.  Please do not allow your dog on your bed or furniture and make sure you use tick prevention on all pets.

 

 

 

 

 

Chest Imaging of Cat-Scratch Disease in 2-Year Old Immunocompetent Baby With No History of Cat Contact

https://www.ncbi.nlm.nih.gov/pubmed/30657130

2019 Jan 15;89(4):585-588. doi: 10.23750/abm.v89i4.6070.

Chest Imaging of a rare case of cat-scratch disease in a 2-years-old baby.

Abstract

Cat-scratch disease (CSD) is usually a self-limiting infection that in the majority of cases occurs as lymphadenitis in children who have been scratched or bitten by a cat. Rarely, Bartonella henselae is cause of fever of unknown origin (FUO), with dissemination to various organs, mimicking an inflammatory rather than a lymphoproliferative disease. This manuscript will present a case of thoracic manifestations of CSD in an immunocompetent 2-years baby without history of cat contact, with fever of unknown origin, investigated by chest CT and MRI.

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**Comment**

The myths surrounding Bartonella are getting shattered one by one.  More and more cases are showing immunocompetent people contracting Bart as well as folks who have had no exposure to cats.  Time for NEW Research and open minds!  Bartonella, like so many other pathogens needs an entirely new approach.  Nothing about this should be reported as “rare.”  Nobody has a clue on prevalence!

https://madisonarealymesupportgroup.com/2018/07/10/bartonella-henselae-neuroretinitis-in-patients-without-cat-scratch/  All the patients denied a history of a cat or any animal contact, or of having CSD findings.

https://madisonarealymesupportgroup.com/2018/07/05/cat-scratch-disease-in-a-1-5-year-old-girl-case-report/  A 1.5-year-old girl who was seen in hospital for the sparing use of her left arm when crawling.  Tested positively for Bartonella henselae.

https://madisonarealymesupportgroup.com/2018/04/03/encephalopathy-in-adult-with-cat-scratch-disease/  Case of a 53-year-old healthy man, presenting with confusion.  Serology confirmed Bartonella henselae infection.

https://madisonarealymesupportgroup.com/2019/01/09/transverse-myelitis-guillain-barre-associated-with-bartonella/  Healthy 10 year old girl had coexisting transverse myelitis and Guillain-Barré syndrome (GBS) related to infection with Bartonella henselae.

https://madisonarealymesupportgroup.com/2018/11/05/skull-infection-due-to-bartonella/  A 3-year-old female with a recent history of typical CSD involving lymph nodes who developed osteomyelitis of the skull.

https://madisonarealymesupportgroup.com/2019/01/02/bartonella-langerhans-cell-histiocytosis-cancer/

 

 

 

Five Brands of Dental Floss May Expose People to PFAS

https://www.buzzfeednews.com/article/nidhisubbaraman/oral-b-pfas-dental-floss?

These Five Brands Of Dental Floss May Expose People To Harmful Chemicals, Study Finds

PFAS “forever chemicals” are found in many consumer products, including nonstick cookware, carpets, and easy-glide floss.

Posted on January 9, 2019, at 7:10 p.m. ET

Andreypopov / Getty Images

People may absorb toxic industrial chemicals from some brands of dental floss, a new study says. It’s the latest evidence that Americans are routinely exposed to this vast class of chemicals, known as PFAS, some of which have been linked to heart disease and cancer.

Women who said they flossed with Oral-B Glide floss had higher levels of a PFAS called perfluorohexane sulfonic acid (PFHxS) in their blood than those who didn’t, researchers reported Tuesday in the Journal of Exposure Science & Environmental Epidemiology.

“I’m not trying to tell people, ‘don’t floss,’” Katie Boronow, a staff scientist at the Silent Spring Institute in Newton, Massachusetts, who was part of the study, told BuzzFeed News. “It’s about choosing safer products.”

The CDC cites dental floss on a list of products that could contain PFAS. Studies in people have linked PFHxS to liver damage and a decreased immune response.

Although scientists have known that PFAS are used in Glide, “this finding suggests that it may be more important than expected,” said Courtney Carignan, an associate professor of food science and toxicology at Michigan State University who was not part of the study.

In addition to looking at the women’s blood levels, the researchers analyzed the chemical makeup of 18 types of dental floss. Six tested positive for fluorine, an element that they said indicates the presence of PFAS compounds. Those products were CVS Health EaseBetween SuperSlip Dental Floss Waxed, Oral-B Glide Pro-Health Mint and Glide Pro-Health Original, Crest Glide Deep Clean Cool Mint Floss, Safeway Signature Care Mint Waxed Comfort Floss, and Colgate Total Dental Floss Mint.

“The safety of the people who use our products is our number one priority. Our dental floss undergoes thorough safety testing and we stand by the safety of all our products,” a spokesperson for Procter & Gamble, the company that owns the Oral-B and Crest brand, told BuzzFeed News by email.

A spokesperson for CVS Pharmacy said by email that the company is “committed to assuring that the products we offer are safe, work as intended, comply with regulations and satisfy customers. We will be reviewing the study and will also contact the supplier of this product.”

Colgate-Palmolive and Safeway did not respond to requests for comment from BuzzFeed News.

PFAS compounds are used in the manufacture of many consumer products, including Teflon and nonstick cookware, waterproofed shoes and clothes, carpets, upholstery, and some kinds of food packaging. (Colgate’s website describes its Total Dental Floss as a “single-strand Teflon fiber.”)

Firefighting foams used at airports and military bases also contain PFAS chemicals. The Department of Defense has identified 126 sites near military bases with PFAS in their drinking water sources. Dozens of municipalities near chemical factories that once made PFAS products are finding the compounds in the public water systems.

Philippe Grandjean, a professor of environmental health at Harvard who was not involved with the study, told BuzzFeed News in an email that he found the results meaningful, despite the possibility that survey participants could have been exposed to PFAS from other sources, too.

“Non-stick pans have [a] larger surface but we don’t chew on them like dental floss,” Grandjean said.

Rita Loch-Caruso, a professor of environmental health at the University of Michigan who was not involved with the study, pointed out that fluoride — which also contains fluorine — is sometimes added to dental products. “It would have been nice to see them discuss whether fluoride could have been contributing to the fluorine measurements on the floss,” she told BuzzFeed News.

Boronow said that none of the products were advertised to contain fluoride for dental health.

The survey included 178 women, 87 of whom were black and 91 non-Hispanic white. The authors noted that follow-up work should include other ethnicities.

The goal of the study, Boronow said, was to get a clearer idea of how people absorbed the chemicals. “Aside from people who have contaminated drinking water or are exposed to PFAS chemicals at work, we don’t know what the most important sources of exposure are,” she said.

Dan Vergano contributed reporting.

 

Acute Transverse Myelitis – A Clinical Manifestation of Lyme (That Nobody Has a Clue About Prevalence)

https://www.ncbi.nlm.nih.gov/pubmed/30622896

2018 Dec 29;15:e00479. doi: 10.1016/j.idcr.2018.e00479. eCollection 2019.

Acute transverse myelitis – A rare clinical manifestation of Lyme neuroborreliosis.

Abstract

Acute transverse myelitis (ATM) is a rare, potentially devastating neurological syndrome that has variety of causes, infectious being one of them. Lyme disease (LD) is the most common vector borne zoonosis in the United States (U.S.). While neurologic complications of LD are common, acute transverse myelitis is an exceedingly rare complication.

We present a case of a previously healthy 25-year-old man who presented with secondary erythema migrans, aseptic meningitis and clinical features of transverse myelitis including bilateral lower extremity motor and sensory deficits manifesting as weakness and numbness, urinary retention and constipation.

Despite negative serum antibodies against Borrelia burgdoferi, cerebrospinal fluid (CSF) was positive for Borrelia burgdorferi PCR.

Following treatment with methylprednisolone and ceftriaxone, he attained complete recovery apart from neurogenic bladder necessitating intermittent self-catheterization. We report rare manifestation of a common disease and emphasize the importance of considering LD in the differential diagnosis of acute transverse myelitis, particularly in residents of endemic areas.

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**Comment**

Nobody has a CLUE about how often anything is occurring in Lyme/MSIDS, when testing misses over half of all cases and folks are commonly misdiagnosed or undiagnosed for years.  Again, because words mean things, and research has been used against patients for over 40 years, a more accurate statement would be, “This is the first recorded case of ATM caused by Lyme Disease.”  And remember, just because something isn’t on record doesn’t mean it hasn’t happened.  Important distinction.

According to https://myelitis.org/living-with-myelitis/disease-information/afm/

The predominant presentation is weakness that may affect the limbs, face, oral or eye muscle. Weakness varies greatly ranging from subtle to very severe. AFM may result in total paralysis, partial paralysis, or weakness of just one limb. The combination of paralysis and how individuals present are widely variable. The limbs or muscle structures of individuals with AFM appear weak, flaccid, or limp and are not spastic as seen in classic cases of transverse myelitis. Since it is markedly the gray matter of the spinal cord that is inflamed in individuals with AFM, sensory, bowel and bladder functions can remain intact, however there are individuals that have both upper and lower motor neuron involvement.

The enterovirus (EV-D68) has been suspect in many of these cases however, it has not been definitively proven that it is this particular virus that has caused the paralysis,(1) although several cases of AFM occurred at around the same time as an outbreak of the EV-D68 virus.(2)

There has been a spike in AFM:  https://madisonarealymesupportgroup.com/2018/10/19/rise-in-acute-flaccid-myelitis-cases-and-the-link-to-vaccinations/

Within the above link, you will learn there are numerous theories on what causes AFM including viruses & vaccinations.  Lyme/MSIDS patients often have viral involvement, and reactivation of Lyme has been documented after vaccinations:  https://madisonarealymesupportgroup.com/2017/12/02/scottish-doctor-gives-insight-on-lyme-msids/, as well as Bartonella:  https://madisonarealymesupportgroup.com/2016/04/24/gardasil-and-bartonella/

https://madisonarealymesupportgroup.com/2016/11/07/connection-of-acute-flaccid-myelitis-and-vaccinations/  In this article, James Lyons Weiler states:

The US press has been pushing a view of acute flaccid paralysis as a mysterious condition of unknown etiology (unknown cause). Checking the scientific literature, however, tells us that AFP is most often Guillain Barre Syndrome (GBS), a condition that appears on the National Vaccine Injury Compensation Program as a “Table Condition” – i.e., one that the US HHS has no defense against when parents file in the NVICP for compensation for GBS as a vaccine injury in their children.  https://madisonarealymesupportgroup.com/2018/12/07/acute-flaccid-paralysis-is-most-often-guillain-barre-syndrome/

GBS is also often a player with Lyme/MSIDS:  https://madisonarealymesupportgroup.com/2019/01/09/transverse-myelitis-guillain-barre-associated-with-bartonella/

https://madisonarealymesupportgroup.com/2017/07/14/clinical-association-lyme-disease-and-guillain-barre/  In Dr. Waisbren’s book, Treatment of Chronic Lyme Disease, the majority of his 51 cases of chronic Lyme had high EBV titers.  He also states,

“As will be seen in other cases, the Epstein-Barr virus may be a candidate for a co-infection associated with LD.”  

Waisbren often treated this co-infected patients that had EBV with 1000mg of Valtrex three times a day with good success.  He also used gamma globulin (4cc twice a week).

So Lyme/MSIDS patients are at the top of the list for AFM for numerous reasons.  Personally, I had a MRI at one point due to the excruciating pain in my spine and occipital headaches.  This pain was unrelenting.  Borrelia burgdorferi (Bb) loves the brain and spinal column.  Many viruses hang out in the spine.  The MRI showed nothing abnormal and I was sent home with the same pain I came with.  While I believe proper antimicrobial treatment to be imperative, what finally relieved this pain for me was MSM:  https://madisonarealymesupportgroup.com/2018/03/02/dmso-msm-for-lyme-msids/

Along with swelling in the spine, patients can have brain swelling as well.  Within one week, I met 3 Lyme patients with Chiari, another supposed “rare” condition:  https://madisonarealymesupportgroup.com/2016/04/02/chiari/  While Chiari is often caused by structural defects in the brain and spinal cord that occur during fetal development, it can also be caused due to injury, exposure to harmful substances, or infection. 

When you study the Bb organism, along with the numerous coinfections, spine and brain swelling makes complete sense and needs to be studied further:  https://madisonarealymesupportgroup.com/2016/02/13/lyme-disease-treatment/

There is so much research begging to be done, yet main stream medicine wants to wrap Lyme into a pretty box with a bow on top.  Again, if there is any box involved with Lyme/MSIDS, it’s Pandora’s.

 

 

2018 Review of Previous Pathogen Transmission Time Studies in Deer Ticks

https://www.ncbi.nlm.nih.gov/pubmed/29398603

2018 Mar;9(3):535-542. doi: 10.1016/j.ttbdis.2018.01.002. Epub 2018 Jan 31.

Pathogen transmission in relation to duration of attachment by Ixodes scapularis ticks.

Abstract

The blacklegged tick, Ixodes scapularis, is the primary vector to humans in the eastern United States of the deer tick virus lineage of Powassan virus (Powassan virus disease); the protozoan parasite Babesia microti (babesiosis); and multiple bacterial disease agents including Anaplasma phagocytophilum (anaplasmosis), Borrelia burgdorferi and Borrelia mayonii (Lyme disease), Borrelia miyamotoi (relapsing fever-like illness, named Borrelia miyamotoi disease), and Ehrlichia muris eauclairensis (a minor causative agent of ehrlichiosis).

With the notable exception of Powassan virus, which can be transmitted within minutes after attachment by an infected tick, there is no doubt that the risk of transmission of other I. scapularis-borne pathogens, including Lyme disease spirochetes, increases with the length of time (number of days) infected ticks are allowed to remain attached. This review summarizes data from experimental transmission studies to reinforce the important disease-prevention message that regular (at least daily) tick checks and prompt tick removal has strong potential to reduce the risk of transmission of I. scapularis-borne bacterial and parasitic pathogens from infected attached ticks.

The most likely scenario for human exposure to an I. scapularis-borne pathogen is the bite by a single infected tick. However, recent reviews have failed to make a clear distinction between data based on transmission studies where experimental hosts were fed upon by a single versus multiple infected ticks. A summary of data from experimental studies on transmission of Lyme disease spirochetes (Bo. burgdorferi and Bo. mayonii) by I. scapularis nymphs indicates that the probability of transmission resulting in host infection, at time points from 24 to 72 h after nymphal attachment, is higher when multiple infected ticks feed together as compared to feeding by a single infected tick.

In the specific context of risk for human infection, the most relevant experimental studies therefore are those where the probability of pathogen transmission at a given point in time after attachment was determined using a single infected tick. The minimum duration of attachment by single infected I. scapularis nymphs required for transmission to result in host infection is poorly defined for most pathogens, but experimental studies have shown that Powassan virus can be transmitted within 15 min of tick attachment and both A. phagocytophilum and Bo. miyamotoi within the first 24 h of attachment. There is no experimental evidence for transmission of Lyme disease spirochetes by single infected I. scapularis nymphs to result in host infection when ticks are attached for only 24 h (despite exposure of nearly 90 experimental rodent hosts across multiple studies) but the probability of transmission resulting in host infection appears to increase to approximately 10% by 48 h and reach 70% by 72 h for Bo. burgdorferi. Caveats to the results from experimental transmission studies, including specific circumstances (such as re-attachment of previously partially fed infected ticks) that may lead to more rapid transmission are discussed.

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**Comment**

There are a number of problematic issues with this study:

  1. This is a review of previous studies.  There is nothing NEW here.  
  2. It’s important to note that ticks typically carry more than just borrelia and transmission times have not taken this fact into account: https://madisonarealymesupportgroup.com/2017/05/01/co-infection-of-ticks-the-rule-rather-than-the-exception/ and https://www.lymedisease.org/lyme-basics/co-infections/about-co-infections/  Infection with more than one pathogen is associated with more severe illness.https://madisonarealymesupportgroup.com/2018/10/30/study-shows-lyme-msids-patients-infected-with-many-pathogens-and-explains-why-we-are-so-sick/  For the first time, Garg et al. show a 85% probability for multiple infections including not only tick-borne pathogens but also opportunistic microbes such as EBV and other viruses.  This is a BIG DEAL.  Finally, a study showing what we face as patients in the real world.  They also never take into account nematodes (worms), mycoplasma, tularemia, and/or Bartonella.  These are infections many if not most patients have to contend with.  Some have been bioweaponized.
  3. They assume that the most likely scenario is for a person to be bitten by one tick.  Assuming makes an ass out of u and me.  When you take into account the latest information on the Asian tick, you quickly realize the probability of coming into contact with hundreds if not thousands of ticks at one time:  https://madisonarealymesupportgroup.com/2018/09/12/three-surprising-things-i-learned-about-asian-longhorned-ticks-the-tick-guy-tom-mather/  While human infection has yet to be found in the U.S., this tick is responsible for plenty of misery in Asia:  https://madisonarealymesupportgroup.com/2018/06/12/first-longhorned-tick-confirmed-in-arkansas/  It spreads SFTS (sever fever with thrombocytopenia syndrome), “an emerging hemorrhagic fever,” but the potential impact of this tick on tickborne illness is not yet known. In other parts of the world, it has been associated with several tickborne diseases, such as spotted fever rickettsioses, Anaplasma, Ehrlichia, and Borrelia, the causative agent of Lyme Disease.
  4. While they discuss the probability of multiple tick attachment, they never discuss the issue of partially fed ticks, where spirochetes would be in the salivary glands – leading to quicker transmission: http://iai.asm.org/content/61/6/2396.full.pdf  Ticks can spontaneously detach – and the authors of this study found that they did so 15% of the time in mice.  They also state that about a tenth of questing nymphs appear distended with partially fed sub-adult ticks being common.
  5. While the current review states, “There is no experimental evidence for transmission of Lyme disease spirochetes by single infected I. scapularis nymphs to result in host infection when ticks are attached for only 24 h (despite exposure of nearly 90 experimental rodent hosts across multiple studies), this study shows transmission can occur in under 16 hours:  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4278789/
  6. https://madisonarealymesupportgroup.com/2017/04/14/transmission-time-for-lymemsids-infection/  Within this video, microbiologist Holly Ahern discusses the numerous problems with animal Bb transmission studies.  Transmission Time:  Only one study done on Mice. At 24 hours every tick had transmitted borrelia to the mice; however, animal studies have proven that transmission can occur in under 16 hours and it occurs frequently in under 24 hours.  No human studies have been done and https://www.dovepress.com/lyme-borreliosis-a-review-of-data-on-transmission-time-after-tick-atta-peer-reviewed-article-IJGM  no studies have determined the minimum time it takes for transmission.  And, never forget the case of the little girl who couldn’t walk or talk after a tick bite attachment of 4-6 hours:  https://madisonarealymesupportgroup.com/2016/12/07/igenex-presentation/
  7. They continue to blame Lyme/MSIDS on the black legged tick as the sole perp when experience and studies show there’s more potential transmitters at play:  https://madisonarealymesupportgroup.com/2018/11/07/are-mosquitoes-transmitting-lyme-disease/https://madisonarealymesupportgroup.com/2016/07/23/german-study-finds-borrelia-in-mosquitos/https://madisonarealymesupportgroup.com/2019/01/17/remember-deer-keds-study-shows-bartonella-causing-deer-ked-dermatitis-in-humans/
Please, quit doing reviews of previous data and do something new using better laboratory techniques!  We don’t need MORE of the same thing.