Come si trasmette la toxoplasmosi

di
gatto

La toxoplasmosi è una malattia causata da un protozoo parassita, il Toxoplasma gondii. E’ un parassita molto comune nel mondo, ed in alcuni paesi la toxoplasmosi raggiunge percentuali di contagio elevatissime, soprattutto nei climi caldi ed umidi. In molti casi il sistema immunitario è in grado di neutralizzare la presenza del parassita, che quindi resta nel corpo ma non procura danni. Ma ci sono alcune categorie a rischio, in particolare le donne in gravidanza e le persone immunodepresse.

Le donne che contraggono il parassita al momento della gravidanza sono particolarmente a rischio di aborto spontaneo, morte del nascituro oppure la nascita del figlio con i segni della toxoplasmosi come la testa più grande o più piccola del normale.

Se la madre invece ha già il parassita in corpo prima della gravidanza, il suo sistema immunitario si trasmette al bambino evitando che il protozoo possa creare danni.

La toxoplasmosi non si trasmette da persona a persona se non nel caso della trasmissione tra madre e figlio, le trasfusioni di sangue o il trapianto di organi.

Le principali vie di trasmissione del parassita sono invece:

Alimentare: il protozoo si trasmette quando si mangia carne poco cotta e contaminata, in generale di maiale o di agnello, dopo aver toccato carne contaminata e non essersi lavato le mani adeguatamente, oppure ancora mangiando cibo che è stato contaminato dall’uso di attrezzi da cucina che in precedenza sono stati a contatto con la carne contaminata, come coltelli, taglieri, piatti.

Dall’animale all’uomo: i gatti sono i principali imputati della diffusione della toxoplasmosi.

Diventano infetti nel momento in cui mangiano altri animali, come piccoli roditori o uccelli che a loro volta erano infettati dal parassita.

E’ nel gatto che il parassita compie il suo sviluppo riproduttivo, e le ovocisti, le microscopiche cellule grazie alle quali il parassita si riproduce, vengono da questo trasportate nelle feci.

Cuccioli e gatti possono avere nelle feci milioni di ovocisti, sino a tre settimane dopo l’avvenuta infezione.
Il gatto infetto può quindi diffondere il protozoo sia nella lettiera, sia nell’ambiente attraverso le feci.

L’ingestione accidentale degli ovocisti da parte dell’uomo è il medium attraverso il quale avviene la trasmissione, per esempio pulendo la lettiera del gatto, non lavandosi accuratamente le mani dopo essere entrati in contatto con un ambiente contaminato, oppure mangiando frutta e verdura o bevendo acqua che possa essere stata a contaminata.

Da madre a figlio, l’infezione congenita avviene con il passaggio del parassita dal corpo della madre a quello del bambino, se la madre può anche non manifestare sintomi, il nascituro invece può andare incontro a gravi problemi di salute, come disturbi del sistema nervoso e degli occhi.

Casi più rari sono quelli di trasmissione attraverso trapianti di organi e trasfusioni. Operatori sanitari e chi lavora in laboratorio può contrarre la toxoplasmosi dall’inoculazione accidentale di sangue infetto.

104.109 commenti su “Come si trasmette la toxoplasmosi”

  3. I am no longer sure where you are getting your information, but good topic.
    I must spend a while finding out more or understanding more.
    Thank you for magnificent information I used to be searching for this info
    for my mission.

  16. Excellent pieces. Keep posting such kind of info on your page.
    Im really impressed by your blog.
    Hey there, You’ve done an excellent job. I will certainly digg it and
    for my part suggest to my friends. I’m confident they will be benefited from this web site.

  21. I’m not that much of a online reader to be honest but your blogs really nice,
    keep it up! I’ll go ahead and bookmark your website
    to come back later. Cheers

  26. This is the right blog for anyone who really wants to find out about this
    topic. You realize a whole lot its almost hard to
    argue with you (not that I personally will need to…HaHa).
    You certainly put a new spin on a topic that’s been discussed for
    decades. Great stuff, just excellent!

  30. This is a very informative post about online casinos and
    betting platforms. I especially liked how it explains the importance of choosing a trusted site before registering.

    Many players often ask where to find reliable gaming platforms with
    fair odds and smooth withdrawals. In my experience,
    checking platforms like milyon88games.com helps users understand what features
    to look for in a legit online casino.

    Thanks for sharing these insights — they’re useful
    for both beginners and experienced players.

  34. I don’t even know the way I finished up here, but I
    assumed this put up used to be great. I do not know who you are however definitely
    you are going to a well-known blogger in case you are not already.
    Cheers!

  35. With havin so much content and articles do you ever run into any problems of plagorism or copyright
    violation? My blog has a lot of completely unique content I’ve either written myself or outsourced but it
    appears a lot of it is popping it up all over the
    internet without my authorization. Do you know any methods to help
    stop content from being stolen? I’d genuinely appreciate it.

  38. NetVol is a modern digital platform designed to deliver secure, efficient, and user-friendly online services.
    With a focus on performance, data protection, and
    seamless accessibility across devices, NetVol ensures a smooth digital experience for its
    users. The platform integrates advanced technology
    and reliable support systems to maintain stability, security, and consistent functionality.

  48. Please let me know if you’re looking for a article writer for your site.
    You have some really good articles and I think I would be a good asset.
    If you ever want to take some of the load off, I’d love
    to write some content for your blog in exchange for a link back to mine.
    Please blast me an e-mail if interested. Kudos!

  49. OMT’ѕ exclusive analytic methods mаke tɑking on tough questions ѕeem lіke a game,
    assisting students сreate a genuine love fоr math and ideas tⲟ radiate іn exams.

    Prepare f᧐r success in upcoming tests ѡith OMT
    Math Tuition’ѕ exclusive curriculum, designed t᧐ foster critical thinking аnd confidence in every
    student.

    Ϲonsidered that mathematics plays ɑn essential role in Singapore’s economic development аnd progress, investing іn specialized math tuition gears ᥙp trainees with the
    analytical skills required tⲟ thrive in ɑ competitive landscape.

    primary tuition іs important ffor constructing strength aɡainst PSLE’s difficult questions, ѕuch
    as thoѕe on possibility and basic stats.

    Ηigh school math tuition іs essential foг O Levels as іt strengthens proficiency off algebraic
    control, ɑ core element that оften appears іn test questions.

    Tuition in junior college mathematics gears
    ᥙp trainees with statistical аpproaches andd probability designs imрortant for analyzing data-driven questions іn A Level papers.

    Ꮃhat distinguishes OMT is its personalized curriculum tһаt aligns witһ MOE wһile
    concentrating ߋn metacognitive abilities, ѕhowing students
    hoᴡ to discover math efficiently.

    OMT’ѕ on-line tuition saves money on transport lah, allowing mօre emphasis on researches ɑnd improved math гesults.

    Singapore’ѕ emphasis on alternative education іs enhanced by math tuition tһat
    constructs abstract tһoᥙght fߋr long-lasting examination advantages.

    my web page; maths and physics tutor solution bank (heysingaporeblog.com)

  87. Please let me know if you’re looking for a writer for your site.
    You have some really great articles and I think I would be a good asset.
    If you ever want to take some of the load off, I’d really like to
    write some articles for your blog in exchange for a link back to mine.
    Please send me an email if interested. Cheers!

  92. I’m pretty pleased to find this page. I want to to thank you for ones time due to this fantastic read!!

    I definitely enjoyed every bit of it and I have you saved to fav to check out new information in your site.

  99. Greate article. Keep writing such kind of information on your
    blog. Im really impressed by your site.
    Hello there, You have done a fantastic job.
    I will certainly digg it and in my view recommend to my friends.
    I’m confident they’ll be benefited from this website.

Lascia un commento

Powered by  GDPR Cookie Compliance
Panoramica privacy

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.