Scientists have issued a warning about a prevalent pet parasite that could potentially affect a significant portion of the global population, putting billions of individuals at risk of severe health implications.
A collaborative study involving multiple universities has emphasized the urgent need for global recognition of toxoplasma gondii as a serious threat to millions of people, despite its previous perception as having minimal health consequences. Commonly referred to as toxo and transmitted by cats, this parasite has been identified as the primary intraocular infection worldwide, with billions of people being carriers, although most remain asymptomatic, especially if they are in good health.
Recent research findings reveal that the parasites responsible for toxoplasmosis can lead to eye infections that damage the retina, prompting a call for its classification as a neglected tropical disease (NTD).
Professor Justine Smith, the lead author of the study published in the journal PLOS Neglected Tropical Diseases, described toxoplasmosis as a major cause of vision loss globally, emphasizing that it does not receive adequate attention in global health initiatives.
While the majority of individuals infected with toxoplasmosis may not display symptoms, those with weakened immune systems may experience flu-like symptoms. The effects can resemble those of viral infections or glandular fever, such as high fever, body aches, and muscle pain, usually resolving on their own. However, in some instances, the parasite can remain dormant in the body, undetected, and later cause eye infections, regardless of the individual’s immune status.
Ocular toxoplasmosis manifests as eye pain, redness, reduced vision, and floaters that drift across the visual field. In severe cases, it can lead to retinal inflammation and permanent blindness.
The study, led by Associate Professor João Furtado from the University of São Paulo and Professor Justine Smith from Flinders University in Australia, brought together experts from various continents. Professor Smith stressed the importance of addressing the vision-threatening effects of toxoplasmosis, underscoring its current lack of attention in global health agendas.
Professor Furtado, the study’s co-author, highlighted that increased recognition and appropriate measures could help public health professionals mitigate the potential impact of toxoplasmosis-related eye infections. He emphasized the preventable nature of the disease through improved food safety, water quality, sanitation, and enhanced access to antenatal care.
Toxoplasma gondii typically infects individuals through the consumption of undercooked meat, contaminated water or produce, and exposure to cat feces. Cats themselves become infected by ingesting contaminated substances.
Opt for Daily Mirror as a ‘Preferred Source’ on Google News for convenient access to the latest news updates.

