Earth should be as unsuitable for them as mars is for us, except in the case of non alive organisms like viruses or prions. But to have viruses you need higher

Earth should be as unsuitable for them as mars is for us, except in the case of non alive organisms like viruses or prions. But to have viruses you need higher forms of life supporting them, those based in cells If we found some alive in Mars and we could found it quickly if we found a cannon with water, we should call them in a distinct way. I will propose marteviruses: Marte-herpesvirus, Marte-adenovirus, Marte-coronavirus, etc. Another way could be putting before a M- prefix but would be less convenient to read