𓃠 cats → shit → toxoplasma gondii → you → Toxoplasmosis


< RFC >

Cats gave you a mind control parasite.

Revisions:
    20190801 stub
    20200410 overview + pre-pub
    20200812 touch
    20201001 touch

Ties to:
    🔗postcats
    🔗antipest


Table of Contents
1 Basics
2 A Communicable Horror Story
3 *** FEATURES, FACTS, QUESTIONS
3.1 (Selected news & science reports)
3.2 * Has a chronic phase - stays forever
3.3 * Spread in almost half of global population
3.4 * Reproduces only in cats
3.5 * Has proven mental & behavioural effect
3.5.1     Rats become unafraid of cat's scent
3.5.2     ... actually become sexually attracted to it
3.5.3     Distrubs GABA → depression, schizophrenia, bipolar, anxiety ...
3.5.4     Increases the reaction time of infected subjects
3.5.5     Gets worse with time
3.5.6     More likely to major in business / management
3.5.7     Purely weird effects
3.6 * Deadly to immunocompromised !
3.7 * Deadly to fetuses (warn pregnant women) !
3.8 * Eeeewww, "500 million oocysts"
3.9 * Is dependent on blood type
3.10 * How to get tested? Costs? Sense?
3.11 * Quick acute phase, worsening chronic phase
3.12 * "Cat people" seem to know jackshit about it
3.13 * Are there other diseases like this?
3.14 * How should society deal with this?
3.15 * Could it be curtailed or eradicated?
3.16 * How to communicate this with "cat people"?
3.17 * Is the public & research attention proportionate?
3.18 * Could the chronic phase be treated or cured?
3.19 * The false "nothing to worry about"
3.20 * Does it help explain the cultural co-development of cats & people ?
3.21 * Cats & the parasite are probably alien invader co-organisms, wielding total influence over all world affairs
4 *** PAD
4.1 raw anti-toxo rant (2020)
4.2 TOMERGE -- david 20200616/17 chats
4.3 more articles
4.4 how you get this
4.5 toread !!!
4.6 Jaroslav Flegr !!!
4.7 ocular toxoplasmosis (EYE/retina)
4.8 more mind-altering parasites?
4.9 Misreporting & Fake news
4.10 A Hope For A Better Tomorrow
4.11 "it's not the cats"
4.12 (HN likes to talk about it)
4.13 Wolves & mind control (study)
4.14 LOL/DEFLECTION— "But these are western studies" ... "OK they're Chinese but they're for a western journal" ... "Yeah send it to me in Chinese. No I don't read Chinese".
4.15 [!!] ... Maybe not? (counter)


Basics

"""
Toxoplasmosis is a parasitic disease caused by Toxoplasma gondii.[3] Infections with toxoplasmosis usually cause no obvious symptoms in adults [...] Toxoplasmosis is usually spread by eating poorly cooked food that contains cysts, exposure to infected cat feces, and from an infected mother to her baby during pregnancy
"""

But that's not all.




A Communicable Horror Story

A short reality-check for cat people, to reshape how they see their beloved disease vectors.
At least for a few moments, thereafter as an exercise in cognitive dissonance.

___________

Cat people! Get your shit together.
But, be careful when you get your cats. (Short desc)
Imagine for a second that you are keeping a pet goldfish at your place. I tell you that it is scientifically established keeping this fish will pass onto you, and others visiting your place, a brain parasite with newly discovered, odd cognitive effects, is linked to schizophrenia, and behavioural changes. They get worse with time. Because of people like you keeping fish, up to 40% of people worldwide are affected by it. Yes really, we establish the fact. You are looking at the creature, concerned and repelled. And you are flushing that fucking pet goldfish into the toilet, or calling somebody to get that fucking thing out of your living space. You call and make sure your past visitors are alright. But here you are, a cat owner, not feeling true concern either for yourself or others. Isn't this disinterest odd? They have passed onto you a parasite you will be carrying for life, making you (same as infected rats) attracted to the smell of their piss - to like having cats around. You need to kick the disease vector out, and stop infecting people. You are annoyed by the messenger. Re-read.






*** FEATURES, FACTS, QUESTIONS


(Selected news & science reports)

* https://news.ki.se/how-the-common-cat-parasite-gets-into-the-brain
"A study led by researchers from Karolinska Institutet now demonstrates for the first time how the parasite enters the brain to influence its host." (2012)


https://news.cision.com/karolinska-institutet/r/how-the-common--cat-parasite--gets-into-the-brain,c9344066
"Toxoplasma is a common ‘cat parasite’, and has previously been in the spotlight owing to its observed effect on risk-taking and other human behaviours. To some extent, it has also been associated with mental illness."


* https://bigthink.com/stephen-johnson/study-students-infected-with-cat-parasite-more-likely-to-major-in-business
"T. gondii, which has been called the “mind-control” parasite by some, has in recent years become the main villain of a strange theory, one which argues that the parasite is subtly altering connections in our brains, “changing our response to frightening situations, our trust in others, how outgoing we are, and even our preference for certain scents,” as Kathleen McAuliffe wrote for The Atlantic."


* https://www.theatlantic.com/magazine/archive/2012/03/how-your-cat-is-making-you-crazy/308873/
"Starting in the early 1990s, he began to suspect that a single-celled parasite in the protozoan family was subtly manipulating his personality, causing him to behave in strange, often self-destructive ways. And if it was messing with his mind, he reasoned, it was probably doing the same to others."


* https://abcbirds.org/program/cats-indoors/cats-and-diseases/


* https://www.edge.org/conversation/toxo
"""
The parasite my lab is beginning to focus on is one in the world of mammals, where parasites are changing mammalian behavior. It's got to do with this parasite, this protozoan called Toxoplasma
"""

<------------------------- (new) selected resources ↑



* Has a chronic phase - stays forever
###



* Spread in almost half of global population
* Reproduces only in cats

"""
About 20 percent of the American public is infected with Toxoplasma gondii, a parasite that can infect birds and most other animals but that reproduces sexually only in cats.
"""

"""
Toxoplasmosis is caused by the extremely common Toxoplasma gondii parasite. Between 30 and 50 per cent of the global population is thought to be infected, and an estimated twenty per cent or so of people in Sweden
"""



* Has proven mental & behavioural effect

"""
A number of studies also confirm that mental diseases like schizophrenia, depression and anxiety syndrome are more common in people with toxoplasmosis, while others suggest that toxoplasmosis can influence how extroverted, aggressive or risk-inclined an individual's behaviour is.
"""


    Rats become unafraid of cat's scent

"""
It has, for example, already been observed that rats become unafraid of cats and even attracted by their scent, which makes them easy prey
"""
Eeeeewwww - actually there's more:


    ... actually become sexually attracted to it

"""
One study, for example, describes how rats infected with T. gondii were no longer scared off by cat urinethey were instead sexually aroused by it.
"""


    Distrubs GABA → depression, schizophrenia, bipolar, anxiety ...

"""
GABA is a signal substance that, amongst other effects, inhibits the sensation of fear and anxiety. Disturbances of the GABA system are seen in people with depression, schizophrenia, bipolar diseases, anxiety syndrome and other mental diseases.
"""
Works via GABA.


    Increases the reaction time of infected subjects

"Researchers have found that the Toxoplasma parasites may affect human behavior and personality, for example"
https://jeb.biologists.org/content/216/1/127.long

"""
Toxoplasmosis increases the reaction time of infected subjects, which can explain the increased probability of traffic accidents in infected subjects reported in three retrospective and one very large prospective case-control study
"""

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC117239/
(Flegr, 2002)
"""
The parasite Toxoplasma gondii infects 30–60% of humans worldwide. Latent toxoplasmosis, i.e., the life-long presence of Toxoplasma cysts in neural and muscular tissues, leads to prolongation of reaction times in infected subjects. It is not known, however, whether the changes observed in the laboratory influence the performance of subjects in real-life situations.
"""



    Gets worse with time

"""
Most of these [behavioural] differences increase with the length of time since the onset of infection, suggesting that Toxoplasma influences human personality rather than human personality influencing the probability of infection
"""



    More likely to major in business / management

"""
Another study found that students infected with Toxoplasma were 40% more likely to major in business at university, and 70% more likely to emphasize "management and entrepreneurship" in their business studies. 
"""
fuck me
we need to build small guillotines


    Purely weird effects
* "Toxoplasma-infected male students are about 3 cm taller than Toxoplasma-free subjects and their faces are rated by women as more masculine and dominant. These differences may be caused by an increased concentration of testosterone"





* Deadly to immunocompromised !
* Deadly to fetuses (warn pregnant women) !

"""
It is, however, known that toxoplasmosis in the brain can be fatal in people with depleted immune defence and in fetuses, which can be infected through the mother.
Because of this risk, pregnant women are recommended to avoid contact with cat litter trays.
"""

"""
But a first infection during pregnancy will cross the placenta, Dr. Grigg said, potentially leading to fetal death, stillbirth or problems in a newborn, including an enlarged head, cognitive deficits and almost certainly eye disease. Newborns born to mothers without previous infection are also vulnerable to the parasite, he said.
"""



* Eeeewww, "500 million oocysts"

"""
“If they’re able to keep their cat inside while they’re pregnant and give the cat tin food that’s cooked, then they don’t need to worry,” she said. “The cat that’s a problem is the feral hunting cat or cat fed uncooked meat.”
An acutely infected cat or kitten can excrete in two weeks up to 500 million oocysts — the infectious form of the parasite — which can remain infectious in soil and water for up to a year, Dr. McLeod said. A person can get infected from even one of these oocysts. “It’s an amazingly effective dissemination system,” she said.
"""



* Is dependent on blood type

"""
Finally, five independent studies performed in blood donors, pregnant women and military personnel showed that RhD blood group positivity, especially in RhD heterozygotes, protects infected subjects against various effects of latent toxoplasmosis, such as the prolongation of reaction times, an increased risk of traffic accidents and excessive pregnancy weight gain
"""
[!!] figure out what this is, how common/rare it is, how to establish, and if I have it



* How to get tested? Costs? Sense?

Test was included for free in a Belgian blood test for a comrade (2020-09). She was negative!



* Quick acute phase, worsening chronic phase
:
    (this is relatively new info - seems 2012)
    * does it always get into this phase, or can this be prevented?
    * can it be cured / rid of?
    * can the effects, spread, or current phase be established?
    * [...]

"""
Most of these [behavioural] differences increase with the length of time since the onset of infection, suggesting that Toxoplasma influences human personality rather than human personality influencing the probability of infection
"""





* "Cat people" seem to know jackshit about it

Why is there no public health concern?



* Are there other diseases like this?

in the sense of:
    * parasitic zoonosis
    * we are discovering mental effects on behaviour
    * we are discovering "chronic phases"
    * [...]




* How should society deal with this?

    A) outlaw cats lol
    B) informed consent for anyone having to deal with this:
         "nobody told me about this when I was asked to look over cats"
    C) pretend this is not fucked up, and ignore it



* Could it be curtailed or eradicated?

Should cats be routinely tested?

How does it get into "raw meat" - the other major vector?



* How to communicate this with "cat people"?
* Is the public & research attention proportionate?

No.
    consult → 🔗representation.systems



* Could the chronic phase be treated or cured?

https://www.thesgc.org/news/Nature_Toxoplasmosis ?



* The false "nothing to worry about"

    """
    “It is quite possibly the most successful parasite on the planet,” Dr. Grigg said,
    but if you have a working immune system, “you really have almost nothing to worry about.”
    """



* Does it help explain the cultural co-development of cats & people ?



* Cats & the parasite are probably alien invader co-organisms, wielding total influence over all world affairs

    aka, "They Live" (1988)










*** PAD


raw anti-toxo rant (2020)

David Potocnik: I think the idea of cats, home-liness, domesticity and ofc toxoplasma g are all the same kompakt  These traits are all basically synonymous with cog dissonance enablers  ... The fact that I am yet to find a single "cat person" that would be generally worried, even though i mean come on read this stuff it is total wtf, ...  ...  You are about to just shrug it off with a short cynical response?  😺


TOMERGE -- david 20200616/17 chats

(screenshots)


more articles

___________

https://medicalxpress.com/news/2019-09-toxoplasma-cat-poo-parasite-infects.html

"In some parts of Europe, such as France, around 50% of the population play host to the parasite"
This explains everything




how you get this

 https://www.anses.fr/en/content/toxoplasmosis 
"""
The consumption of raw or undercookedmeat containing parasitesis the cause of most infections in humans. Soiled or inadequately washed vegetables 
and fruits, and very rarely drinking water, can also be a source of infection if they have been contaminated by parasites.
"""

"""
In the Czech Republic, the currently most common sources of infection are gloveless gardening and the consumption of raw, insufficiently washed vegetables (carrot, radishes). Oocysts may also be contained in the soil that your cat or dog brings to your house on their paws and in their fur. In many countries, the consumption of raw or semi‑raw meat is an important source of infection. However, this is not true for the Czech Republic because the infected meat doesn’t usually come from industrial production. It is often domestic production meat or game that contains the parasite, in which case you can become infected simply by manipulating with the meat or from vegetables cut on a cutting board that had previously been used for the meat
"""



Jaroslav Flegr !!!

https://en.wikipedia.org/wiki/Jaroslav_Flegr

"""
But Jaroslav Flegr, a biologist who’s perhaps done more than anyone to advance the theory that parasites could be quietly pulling the strings of our behavior, thinks there’s a different reason why scientists are quick to doubt the body of research. 
“There is strong psychological resistance to the possibility that human behavior can be influenced by some stupid parasite,” he told The Atlantic. “Nobody likes to feel like a puppet. Reviewers [of my scientific papers] may have been offended.”
"""

"Flegr maintains that toxoplasmosis might increase the rate of traffic accidents by as much as one million collisions per year"

______________


https://www.flegr.com/en/




ocular toxoplasmosis (EYE/retina)

"""
Finally, the last form of toxoplasmosis is ocular toxoplasmosis with retinal damage mostly, but not exclusively, in consequence of congenial infection. The infection may cause repeated inflammation of the retina, leading to the loss of sight in the affected eye.
"""



more mind-altering parasites?

"""
Thus, it is thought that the thorny-headed worm physiologically changes the behavior of the Gammarus lacustris in order to enter its final host, the bird. 
"""
https://en.wikipedia.org/wiki/Acanthocephala#Human_infections
(found via surfineg Fish Parasites)
----------------------

What other behaviour altering parasites are there?
Are we on top of this at all?
FInd a reference / popular work for this !!!



Misreporting & Fake news

https://www.nytimes.com/2017/06/08/well/family/how-worried-should-cat-owners-be-about-toxoplasmosis.html :
"""The only people who face a risk from Toxoplasma gondii are pregnant women who have not previously been infected"""
meh
1) it's proven it influences behaviour in other mammals
2) it's killing many people every year because of traffic accidents



A Hope For A Better Tomorrow

Draft of a novel

"""
HAHAHA. I pick my battles!! But I really do hope there will be a cure for this, I will be monitoring the behavioral research, and encouraging people to test & perhaps use this bizarre insight about our mental machines to control their impulses and states...
And who knows, maybe some day soon we figure it all out - that it was the cats that got us all catty in the first place, with the rise of grain collecting, mice attracting, warring civilizations, we shoo them back to the forests, and get peace on Earth
"""



"it's not the cats"

(random person):
"""
Cat ownership is one of the least likely ways to become infected with toxoplasmosis - far more likely is contact with undercooked meat. In fact most studies suggest it is not an important risk factor at all.
"""
https://www.bmj.com/content/321/7254/142
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3497129/#!po=4.54545

Sure, but *it only multiplies in cats*, so wtf.



(HN likes to talk about it)

https://news.ycombinator.com/item?id=28988486
https://news.ycombinator.com/item?id=30889109

https://news.ycombinator.com/item?id=27599085
"""
Case in point is Hawaii; attempts to bring the wild cat populations under control are immediately met with resistance from animal rights groups.  This is in spite of the ongoing destruction to wild bird populations.  One also has to be extremely careful about washing local vegetables, due to cats spreading toxoplasma.
"""

https://news.ycombinator.com/item?id=24694341



LOL/DEFLECTION— "But these are western studies" ... "OK they're Chinese but they're for a western journal" ... "Yeah send it to me in Chinese. No I don't read Chinese".

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8722283/
:D



[!!] ... Maybe not? (counter)

https://www.nbcnews.com/health/health-news/cats-don-t-cause-mental-illness-study-finds-n723866

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4581702/


<----------------------------------------- ((new))



https://pubmed.ncbi.nlm.nih.gov/29068607/
schizophrenia
(more research drops around 2022/12)
it implies directly almost 1% population, causing "150 billion $" damages per year

#anticats #101 #lol
https://theoatmeal.com/comics/cats_actually_kill



!!! #TOMERGE
david<>eva instagram 20190801