Your pet's blood lymphocyte numbers can also go down when lymphocytes are lost into retained fluids (chylothorax) and in immune system malfunctions. (2ndchance.info)
Vaccines have also been implicated as a trigger for immune system malfunctions, such as immune - mediated anemia, which can be life - threatening. (animalsheltering.org)
They are caused by the immune system malfunctioning and over-reacting to these harmless foods. (sciencedaily.com)