Bedding of research rats cleaned like a five star hotel

Lab mice and rats are domesticated for docility. They must be free from any disease. [Courtesy]

Before the Covid-19 vaccines were used on you, they were first tested on mice. White mice, that is. For ages, medical researchers use animals to verify safety of medicines and vaccines. Besides biomedical research, mice are also used in psychological experiments. But why mostly white mice and rats, not cats?

For starters, mice and rats used for medical research are not the kind found nibbling at overnight ugali in your house. Or wild rats roaming in sewer lines. Lab rats, also nicknamed ‘test tubes with tails’, are mostly bred in controlled environments and are of specific strain so that a researcher in Chicago, USA, gets the same results as one in Siakago, Kenya.