Answer to Case 600
Answer toParasite Case of the Week 600: Lovely ectoparasite collage of a larval tick ofRhipicephalussp., courtesy of my amazing technical specialist, Emily Fernholz.Note that the arthropod has 6 legs (to go with my 600th case), indicating that this is a larva rather than nymph or adult. One reader queried if the components of the collage were from all of my cases to date. Wow, what a great idea! There are more than 4000 images present, which might have been able to represent all of the images from my various cases. However, that is not the case here - the collage is made up of many different arthropods, including bed ...
Source: Creepy Dreadful Wonderful Parasites - July 26, 2020 Category: Parasitology Source Type: blogs

How Facial Hair Changes A Man ’s Attractivity (M)
In our evolutionary past, beards could carry bugs, lice and ticks -- indeed, they still might. → Support PsyBlog for just $5 per month. Enables access to articles marked (M) and removes ads. → Explore PsyBlog's ebooks, all written by Dr Jeremy Dean: Accept Yourself: How to feel a profound sense of warmth and self-compassion The Anxiety Plan: 42 Strategies For Worry, Phobias, OCD and Panic Spark: 17 Steps That Will Boost Your Motivation For Anything Activate: How To Find Joy Again By Changing What You Do (Source: PsyBlog | Psychology Blog)
Source: PsyBlog | Psychology Blog - January 17, 2020 Category: Psychiatry & Psychology Authors: Jeremy Dean Tags: Attractiveness subscribers-only Source Type: blogs

Pyrethroid insecticides may increase cardiovascular mortality
A study published in JAMA (Journal of American Medical Association) Internal Medicine evaluated the environmental exposure to pyrethroid insecticides by checking the levels of general pyrethroid metabolite 3-phenoxybenzoic acid in urine samples [1]. Pyrethroids are used in mosquito repellents, lice shampoos and pet sprays are generally considered to be safe insecticides. But this study found that higher levels of pyrethroid metabolites in urine over a 14 year observation period was associated with a higher risk of death from all causes or from cardiovascular diseases. The study involved 2116 adults aged 20 years or more w...
Source: Cardiophile MD - January 1, 2020 Category: Cardiology Authors: Prof. Dr. Johnson Francis Tags: Cardiology Source Type: blogs

Answer to Case 560
Answer toParasite Case of the Week 560: " Back to school " pinwormThis fun image had a question in 3 parts:What is the parasite shown? Eggs ofEnterobius vermicularisWhy is this a suitable parasite for September? September is the time that kids go back to school in America, and thus are more likely to obtain easily-transmitted parasites such as pinworm and head lice. As Nema noted, pinworm is " a parasite that is transmitted efficiently at the start of the school year because the embryonated eggs easily pass from the hands (unwashed) from one child to another and can also pass through the fomites "What i...
Source: Creepy Dreadful Wonderful Parasites - September 15, 2019 Category: Parasitology Source Type: blogs

Are CBP ’s Filthy and Inhumane Immigrant Detention Camps Necessary?
This report came just over a month afterDHS OIG ’s May 30 report on “dangerous overcrowding” in El Paso.What are the conditions in CBP ’s detention camps?Across the entire border, CBPwas detaining from May to June between 4 and 5 times as many people as its facilities were designed to hold. It is impossible to list here everything that the OIG reports exposed, but here are some of what they found:A cell with a maximum capacity of 35 held 155 detaineesA cell with a maximum capacity of 8 held 41 detaineesDetainees were wearing soiled clothing for days or weeks.Children at three of the five Border Patr...
Source: Cato-at-liberty - July 3, 2019 Category: American Health Authors: David Bier Source Type: blogs

Psychologists Have Identified The Creatures We Find Most Scary And Revolting
via Polák et al, 2019 By Christian Jarrett You may be best advised not to read this article late at night or before you eat. Psychologists at the National Institute of Mental Health and Charles University in the Czech Republic have surveyed a large sample of non-clinical volunteers to gauge their reaction to 24 creatures that are commonly the source of specific animals phobias. The results, published in the British Journal of Psychology, not only contribute to our understanding of animal phobias, but could prove incredibly useful to horror writers. Among the key findings is that spiders were unique in being both int...
Source: BPS RESEARCH DIGEST - June 25, 2019 Category: Psychiatry & Psychology Authors: BPS Research Digest Tags: Emotion evolutionary psych Mental health Source Type: blogs

Sunday Sermonette: I hate it when that happens
As we continue with the plagues, keep in mind that the Torah as it now exists was published in the 5th Century BCE, long after these events supposedly occurred, and that the Egyptian captivity is entirely mythical. The composition of the various elements of the Torah happened over the preceding 200 years or so. Psalm 78 recounts this mythical history but lists only 6 plagues. Psalm 105 lists 7 plagues, in a different order. Apparently someone decided to insert 3 more to make 10, but who knows why?1 [a]Then theLord said to Moses, “Go to Pharaoh and say to him, ‘This is what theLord says: Let my people go, s...
Source: Stayin' Alive - June 2, 2019 Category: American Health Source Type: blogs

Health Technologies To Eradicate Insects Transmitting Deadly Diseases
Drones transporting sterilized male mosquitos, cybernetic dragonflies, genetically modified insects with malaria-resisting traits, supersensitive radars or digital maps: the most innovative methods are deployed in the war on the tiniest but most murderous beasts out there: mosquitos, fleas, ticks carrying infectious diseases. Here’s the latest arsenal of digital technologies to eradicate insects and reduce deadly epidemics. Unusual suspects: mosquitos, fleas, and ticks Sharks, bears, tigers, the Killer Rabbit of Caerbannog in association with sharp teeth and claws represent the traditional image of deadly animals. Ho...
Source: The Medical Futurist - December 4, 2018 Category: Information Technology Authors: nora Tags: Biotechnology Future of Medicine Medical Professionals Policy Makers Researchers AI big data CRISRP digital health digital maps disease disease awareness epidemics gene editing Healthcare Innovation insect mosquito prev Source Type: blogs

Answer to Case 507
Answer: Male Pediculus humanus,likelyP. h. capitis(clinical correlation required) - or - as Blaine and Florida Fan note - a booger bugger beastie!As Idzi mentioned, it is not possible to tellP. h. humanusandP. h. capitisapart by morphology alone since there is significant overlap in sizes between the 2 otherwise identical subspecies.Richard, Florida Fan and Idzi nicely discussed the likely route of introduction into the nostril: little fingers, or possibly even inhalation. It makes me wonder though - could the lice ever live on nostril hair? As a review, here are some of the key identifying features ofPediculus h...
Source: Creepy Dreadful Wonderful Parasites - August 20, 2018 Category: Parasitology Source Type: blogs

Answer to Case 502
Answer:Borreliaspp., relapsing fever group. Molecular studies are needed to definitively identify the causative agent. However, knowing the exposure history of the patient also helps narrow the differential. In this case, we later found out that the patient is from the northwestern part of North America, and therefore this is most likelyBorrelia hermsii,one of the tick-borne relapsing feverBorreliaspecies.The other tick-borneBorreliain North America areB. parkeriiandB. turicatae.These species are transmitted through the bite of a soft-bodied tick in the genusOrnithodoros,and are usually associated with exposure to'rustic's...
Source: Creepy Dreadful Wonderful Parasites - July 15, 2018 Category: Parasitology Source Type: blogs

Weekend Poem
LiceThe school sent notice of a lice alertWe were to dutifully check our children ’s heads.The kids were spooked:Tiny burrowing bugs, would it hurt?The little girl had attached a post-it note to her math bookA morning reminder in kid scrawl:wet your hair, put it in a ponytailI can spread along your pale stripe of partThe bronzed roots swished to and froLike the swaying grasses of coral reefs.Is that a nit or just last night ’s white rice?I will buy the special shampooI will scrub your scalp until it bleedsYou ’re a good little girl.You listen, you follow the rules.Hurry home from schoolDon ’t wear y...
Source: Buckeye Surgeon - March 4, 2018 Category: Surgery Authors: Jeffrey Parks MD FACS Source Type: blogs

Constitutional Defects Big Enough to Drive a (Food) Truck Through
Imagine that it ’s your first day at a new job. As you endure the tedious onboarding process, an interesting tidbit catches your attention; among the perks of your new position, you will be issued a company car and cell phone. “Sweet!” you exclaim, now more confident than ever of having made the right career move. But your enthusiasm drops precipitously as you learn that GPS devices have been installed on both the car and phone, allowing the company to continuously track your location. And your shock turns to horror when you are informed that the (mandatory) use of these items requires that you consent to...
Source: Cato-at-liberty - February 22, 2018 Category: American Health Authors: Ilya Shapiro, Aaron Barnes Source Type: blogs

A Buggy Case
​A 35-year-old man with a history of asthma presented with an exposure after spraying his garage with an insecticide he bought at the hardware store. Shortly after spraying the insecticide, he noticed eye itchiness, tingling, pruritus over his arms and legs, and shortness of breath. His blood pressure was 130/85 mm Hg, heart rate 70 bpm, respiratory rate 14 bpm, temperature 98.7°F, and SpO2 96% on room air.​He was alert and anxious, his skin was warm with mild erythema, and he had urticaria over his forearms and ankles. His lung exam revealed diffuse wheezing bilaterally. His eyes were watery, and his pupils were 4...
Source: The Tox Cave - July 3, 2017 Category: Emergency Medicine Tags: Blog Posts Source Type: blogs

Sharon Woman Pays Sister to Remove Lice Infestation
You can view the segmenthere. (Source: The Rest of the Story: Tobacco News Analysis and Commentary)
Source: The Rest of the Story: Tobacco News Analysis and Commentary - April 11, 2017 Category: Addiction Source Type: blogs

Color Me Healthy
Coloring books for both children and adults have become very popular lately. A blog post from NLM’s Circulating Now: From the Historical Collections of the World’s Largest Biomedical Library highlights this trend with references to The Latest Greatest Coloring Book about Lice from the National Pediculosis Association, CDC’s Express Your Health and The Non-Color AIDS Color Me Deadly Coloring Book, and Skeeter Beaters about preventing Zika mosquitoes. Coloring books are popular health education tools for children used by organizations to teach everything from proper eating habits to what to expect duri...
Source: BHIC - September 22, 2016 Category: Databases & Libraries Authors: Kay Deeney Tags: Articles Children and Teens National Library of Medicine News Source Type: blogs

That Upcoming Month
This month is September. You know that first month of fall where you can feel the first crispness in the air (especially here in New England), back to school, and all that. It is also:Childhood Cancer Awareness MonthNational Pediculosis Prevention Month/Head Lice Prevention MonthNational Recovery MonthNational Sickle Cell MonthNational Traumatic Brain Injury Awareness MonthOvarian Cancer Awareness MonthPain Awareness MonthProstate Cancer Awareness Month18 National HIV/AIDS and Aging Awareness Day22 Falls Prevention Awareness Day28 National Women's Health& Fitness DayThe full list contains many more awareness topics. (A...
Source: Caroline's Breast Cancer Blog - September 5, 2016 Category: Cancer & Oncology Tags: brace yourself pinkification pinktober Source Type: blogs

February blogs digest: Zika virus, getting published, sepsis, cancer, and more
Zika virus – investigating the outbreak Zika virus has recently been declared a global health emergency following an outbreak detected in Brazil last year. The virus has now moved into more than 20 countries in Latin America, becoming a huge threat, particularly with pregnant women whereby the virus has been linked to microcephaly. We asked Dr Claudia Nunes Duarte dos Santos, whose laboratory is responsible for confirming Zika virus in Brazil, more about the virus. In addition, we explored the genetic control methods that are ready to be used to control the Zika outbreak. How to get published: top tips from our edito...
Source: BioMed Central Blog - March 4, 2016 Category: Journals (General) Authors: Sophie Marchant Tags: Biology Health Medicine blogs digest Source Type: blogs

Common sense guidelines for children with lice
A new clinical report from the American Academy of Pediatrics is a rare beacon of coherent thought about lice and children. Rather than humiliating children and driving them away like lepers, the AAP recommends common-sense steps to identify and treat lice. Some facts really shouldn’t be in dispute: Continue reading ... Your patients are rating you online: How to respond. Manage your online reputation: A social media guide. Find out how. (Source: Kevin, M.D. - Medical Weblog)
Source: Kevin, M.D. - Medical Weblog - May 25, 2015 Category: Journals (General) Authors: Tags: Conditions Pediatrics Source Type: blogs

Are Lush products really self preserving? Episode 72
How can products like Lush’s Charity Pot be self preserving? Tune in to this week’s show to find out. Plus – more Beauty Science News! Claim to fame: How are Lush products self preserving? This is a popular new feature where we look at the claims of popular beauty products and explain what the claim really means, how the company might support the claim, and most importantly, if the claim really makes enough of a difference for you to buy the product. A listener named Fernanda asked us to review Lush’s self preserving claims for their skin lotions and she sent a link to this video. What does the...
Source: - March 3, 2015 Category: Consumer Health News Authors: Randy SchuellerDiscover the beauty and cosmetic products you should use and avoid Source Type: blogs

Healthcare Update Satellite — 02-10-2015
This article calls testosterone the “drug of the future” and compares its use to estrogen – which isn’t a controlled substance. One person interviewed for the article noted that “almost everything we treat in medicine is age-related. Aging is related to bad eyesight, bad hearing, bad joints, bad hearts, bad blood vessels, and cancer. We treat all of these without trying to minimize or diminish them that they are age related.” Why pick on testosterone use? Damn. Boyfriend secretly records himself having sex with his 17 year old girlfriend. Video “somehow” gets uploaded to inte...
Source: WhiteCoat's Call Room - February 10, 2015 Category: Emergency Medicine Authors: WhiteCoat Tags: Healthcare Update Source Type: blogs

Santa Cancels Visit to United States; Cites Strict New OSHA Regulations.
North Pole -- Santa Claus canceled his annual Christmas Eve visit to the United States to avoid strict new Occupational Safety and Health Administration (OSHA) regulations that would have required him to trim his beard to less than two inches.  Earlier this year, OSHA passed regulation 29.63.23 requiring all humans passing through a chimney in the course of normal work duties to keep their facial hair less than 2 inches long.  Failure to comply would result in a $10,000 fine per incident.Santa tells OSHA to get lost!Advocates claim bearded chimney accidents result in tens of thousands of accidents a year, includi...
Source: The Happy Hospitalist - December 24, 2014 Category: Internists and Doctors of Medicine Authors: Tamer Mahrous Source Type: blogs

Does mayonnaise really kill head lice?
Missy says…I used two lice treatments on my hair. Today I am trying to condition my hair because it is completely dry and still a little itching. I researched and mayonnaise is supposed to kill lice plus condition hair….is this true?? The Beauty Brains respond: Can mayonnaise kill head lice? Missy, Missy, Missy. That is ridiculous! It only takes a quick search of the scientific literature to prove that using mayonnaise on lice is just a load of bull… wait a minute… There’s a study in a peer-reviewed scientific journal that suggests this might actually work? Hold the presses! The science of...
Source: - June 26, 2014 Category: Consumer Health News Authors: Randy Schueller Tags: Bizarre Myths Source Type: blogs

Answer to Case 300
Answer:  Pediculus humanus nits (eggs).  This case was striking in that there were a large number of nits on these strands of hair, indicating a heavy infestation.Given the location of the nits on hair, this is most likely the head louse (P. h. capitis) rather than the body louse (P. h. humanus).  The crab louse, as some readers suggested, also lay their nits on hair, but these nits can be differentiated by their taller operculum:Due to the very infectious nature of head lice, the other residents of the nursing facility should be examined and treated for head lice if appropriate.And now our poem from Blaine:...
Source: Creepy Dreadful Wonderful Parasites - April 13, 2014 Category: Pathologists Source Type: blogs

Answer to Case 293
Answer:  nit (egg) of Pthirus pubis, the crab louseYou can differentiate this nit from the similarly appearing nits of the head and body lice by its taller operculum (cone of cells at the apex):And now a poem from Blaine Mathison (I'm not taking responsibility for this one!)Chilling at home in his bachelor padtrying to get all the booty that he could grabbut his latest of trystsgave him a gift that persistsfor now he's host to Sebastian the 'Crab' (Source: Creepy Dreadful Wonderful Parasites)
Source: Creepy Dreadful Wonderful Parasites - February 24, 2014 Category: Pathologists Source Type: blogs

A Week of Hard but Rewarding Work in Honduras
By Mara Levitt, MD, & Ashley Davis, MD   Honduras, a Central American country bordered by Guatemala, El Salvador, and Nicaragua, is home to more than eight million people, and produces minerals, coffee, tropical fruit and sugar cane. The capital, Tegucigalpa, is divided into 18 departments; we traveled to Intibuca.   Honduras has the highest rate of homicide in the world. The water supply and sanitation varies from modernized water treatment systems to basic systems, from sewer systems to latrines and basic septic pits. A lack of maintenance leads to poor water quality, and residents’ health varies depe...
Source: Going Global - November 11, 2013 Category: Emergency Medicine Tags: Blog Posts Source Type: blogs

A Week of Hard but Rewarding Work in Honduras
By Mara Levitt, MD, & Ashley Davis, MD   Honduras, a Central American country bordered by Guatemala, El Salvador, and Nicaragua, is home to more than eight million people, and produces minerals, coffee, tropical fruit and sugar cane. The capital, Tegucigalpa, is divided into 18 departments; we traveled to Intibuca.   Honduras has the highest rate of homicide in the world. The water supply and sanitation varies from modernized water treatment systems to basic systems, from sewer systems to latrines and basic septic pits. A lack of maintenance leads to poor water quality, and residents’ health varies ...
Source: Going Global - November 11, 2013 Category: Emergency Medicine Tags: Blog Posts Source Type: blogs

Answer to Case 275
Answer:  Crab lice, (Phthirus pubis or Pthirus pubis).  Anon points out that "Pthirus" is correct rather than "Phthirus;" however the only reference I could find on this was Wikipedia.  The CDC DPDx Web page uses "Phthirus" as does many publications on PubMed.  Does anyone have a different reference for me on the correct spelling?Another interesting comment that came up on this post was how this little arthropod may be at risk of extinction due to the widespread practice of genital hair shaving.  I've heard this several times now from a variety of popular media so...
Source: Creepy Dreadful Wonderful Parasites - September 23, 2013 Category: Pathologists Source Type: blogs

How to use dimethicone for lice
Lenore longs for lice learning…Is there a hair care product or other moisturiser, currently retailing with a dimethicone or Polydimethylsiloxane content of 4% or above and/ or how do I work out on ingredient list what the percentage would be? Reason for this is for head lice treatment. Health organization in Australia just recommended 2 new products with high silicone content as a very good treatment, but as usual the 2 retailers of this product are expensive for a single parent family having to treat all members frequently due to ongoing infestations at my daughters’ school. The Beauty Brains respond: Hi Leno...
Source: - June 21, 2013 Category: Consumer Health News Authors: thebeautybrains Tags: Questions Source Type: blogs

Answer to Case 261
Answer:  Pediculus humanus, either P. h. humanus or P. h. capitus, the body and head lice respectively.  This little arthropod can be readily identified by its elongated body (which is dorso-ventrally flattened, like someone stepped on it), lack of wings, and 'raptorial' legs adapted for grasping hair shafts.Interestingly, you can't reliably tell head lice and body lice apart morphologically, and you might be tempted to think that they are the same organism.  However, in nature they occupy very distinct geographical niches (body and clothing vs. head respectively) and they will only breed with each othe...
Source: Creepy Dreadful Wonderful Parasites - June 9, 2013 Category: Pathologists Source Type: blogs

Answer to Case 256
Answer:  Phthirus pubis, a.k.a. crab lice (3 to be exact).Note their classic 'crab-shaped' claws - used for grasping on to the coarse hairs of the genital region and eyebrows/eyelashes.  Also shown here is a classic nit of P. pubis, with the raised operculum that allows it to be differentiated from the flatter operculum of the body/head louse, Pediculus humanus.  Here are the 2 nits shown side by side for comparison:And now, a lovely poem from Blaine:On a trip to Vegas one man thought he mightHire company for the duration of the nightBut he got more than he paid forFrom his mistress d’amourFor now Phth...
Source: Creepy Dreadful Wonderful Parasites - May 4, 2013 Category: Pathologists Source Type: blogs

Greedy and Grateful..."Naturally!"
So, I'm back from the Natural Products Expo West with an exciting report about everything that's new and hot and happening in the industry! OK, let's be honest. I'm really back with some vague impressions and a bloated belly and the vestiges of a sugar coma and some random business cards and a HUGE CRAPLOAD of free samples. Ah, life is good. And yes, we did stick to the "one bag" rule, but there were two of us and we also had backpacks. Plus we were determined and relentless. While other members of the media were out interviewing natural product purveyors in order to obtain helpful information for their ...
Source: Cranky Fitness - March 11, 2013 Category: Consumer Health News Authors: Crabby McSlacker Source Type: blogs

Answer to Case 238
Answer:  Pediculus humanusAs pointed out by Hans, P. humanus has 2 ecotypes, which are referred to as head lice and body lice.  Although they are very similar and have overlapping body features, they differ by only a single gene and can successfully interbreed to produce fertile off-spring.  Here is an interesting review on human head and body lice which covers the taxonomy in greater detail:Veracx and Raoult. Biology and genetics of human head and body lice. Trends in Parasitology, December 2012, Vol. 28, No. 12.Enjoy, and Happy 2013! (Source: Creepy Dreadful Wonderful Parasites)
Source: Creepy Dreadful Wonderful Parasites - December 23, 2012 Category: Pathologists Source Type: blogs