Domestic cats and dogs may have to be vaccinated in the future against Covid-19 to protect people

This is a quick note but one worth making nonetheless. I think I can predict that in the long term, perhaps in about 18 months to 2 years time, governments in various countries, perhaps predominantly in the West, will be thinking about vaccinating companion animals as a second phase protective measure against Covid-19.  This is because there is a concern amongst some scientists that animals may create a reservoir for mutant variants of the Covid-19 virus. As the virus is zoonotic it can theoretically and actually be transmitted from animals to people and this must apply also to companion animals. Danish mink farmer with white mink due to be euthanised. Photo per credit Perhaps because of the general panicked nature of governmental responses to the coronavirus pandemic, not enough work has been done on this aspect of the spread of the disease. In addition nobody wants to alarm anybody which may lead to companion animal abuse. In fact, in China, at the outset of the pandemic, there were

Why do cats eat grass?

We don't know for sure why cats eat grass. The best theory is as follows. Grass contains a vitamin called folic acid. Domestic cats chew on the grass to extract the folic acid. Folic acid plays a role in the production of haemoglobin.

Haemoglobin carries oxygen in the blood. Snow leopards living at altitude eat unusually high amounts of vegetation. This may be because it aids with getting the maximum amount of oxygen into the body where the air is thin. A deficiency in folic acid can cause feline anemia. Sometimes it can cause vomiting.

This has given rise to the idea that the intention is to cause vomiting to remove hair balls. But I presume that the vomiting is an unwanted side effect that is of little concern to the cat. Cats vomit with ease.

Other theories are that grass acts as a laxative to remove hairballs. Or to ease stomach irritation.

Eating grass or vegetation is not a from of Pica (eating non-nutritional material).

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