Is it true that dog hair is bad for you health? It can cause toxoplasmosis or any other disease?

How do people get toxoplasmosis?

A Toxoplasma infection occurs by:

Accidentally swallowing cat feces from a Toxoplasma-infected cat that is shedding the organism in its feces. This might happen if you were to accidentally touch your hands to your mouth after gardening, cleaning a cat's litter box, or touching anything that has come into contact with cat feces. Eating contaminated raw or partly cooked meat, especially pork, lamb, or venison; by touching your hands to your mouth after handling undercooked meat.

Contaminating food with knives, utensils, cutting boards and other foods that have had contact with raw meat.

Drinking water contaminated with Toxoplasma.

Receiving an infected organ transplant or blood transfusion, though this is rare.

Toxoplasmosis is a parasitic disease caused by the protozoan Toxoplasma gondii.The parasite infects most warm-blooded animals, including humans, but the primary host is the felid (cat) family. Animals are infected by eating infected meat, by contact with cat feces, or by transmission from mother to fetus. Cats have been shown as a major reservoir of this infection. While this is true, contact with infected raw meat is perhaps a more important cause of human infection in many third world countries.

I wouldnt worry about the dog but your cat :)

Is it true that dog hair is bad for you health? It can cause toxoplasmosis or any other disease?

It is true that dog hair can cause myriad conditions in the human body but only if there is a preexisting allergic condition to the substances in pet hair and dander that can trigger violent reactions in the human system! If you do not have an allergy to pet hair, you have nothing to worry about. Just think of the millions of people that would be dropping dead day after day if this affected everybody!