Daughter has tested positive for cmv and ebv igm. also microcytic anaemia with iron deficiency. previously had rsv and adenovirus. related to anaemia?

Hard to say: It is relatively common for a 1 yo to be a bit on the anemic side. Recurrent illness does increase metabolic demands on their system and they have been growing at a rate that can outpace their dietary intake of iron.A simple addition of proper medicinal iron can improve the anemia and working on diet can eliminate it in the future. With better iron levels their immune system also works better.