It isn't a question of liking or not liking dogs, or of being precious about them pooping on your treasured lawn, it is a wish NOT to have contact with dog poop at all. Some may think the dangers of the stuff are exaggerated, but if anything they are only recently being shown to be worse than we thought, and they are likely to be implicated in conditions such as epilepsy, neurodegenerative disorders, asthma, and cognitive developmental delays in children. To determine levels of environmental contamination, soil from 142 parks and recreational areas across the UK and Ireland was assessed for the presence of Toxocara.
" WormWatch: Park soil surveillance reveals extensive Toxocara contamination across the UK and Ireland^ First published: 09 November 2022
" Characteristic Toxocara-type eggs were found in 86.6% of parks, with an average of 2.1 eggs per 50 g of topsoil.
Toxocarosis is a globally significant parasitic zoonosis caused by ascarid nematodes of canids (Toxocara canis) and felids (Toxocara cati).
Around 25% of people were seropositive for specific anti-Toxocara antibodies in the UK and Ireland in historical studies of hospital and paediatric populations, while average seroprevalence is 10.5% in Europe and 19.0% globally. In humans, acute toxocarosis can present as visceral or ocular larva migrans, heightened eosinophilia or acute inflammation following tissue disruption by migrating larvae, which can reach neuronal tissue resulting in neurotoxocarosis. The chronic impact of toxocarosis is not fully appreciated, but there is mounting evidence associating toxocarosis with conditions such as epilepsy, neurodegenerative disorders, asthma, and cognitive developmental delays in children.
With a pre-patent period of around 1 month, repeated monthly treatment with a non-persistent anthelmintic that kills Toxocara worms should result in zero egg production. Unfortunately, even though it has been suggested recently that 97% of UK dogs should be wormed every month, the estimated average number of anthelmintic treatments was 3.1 per year.
Pet owners are unlikely to notice any ill health arising from infections in mature dogs, so motivation for action might be low, which of course entirely misses the purpose of prevention. "
bvajournals.onlinelibrary.wiley.com/doi/10.1002/vetr.2341