Variation of serum calcium and magnesium of buffaloes artificially infected with babesia bovis .
巴贝斯虫病水牛血清钙镁浓度变化与染虫率的关系。
Serology for infectious agents like feline leukemia virus , ehrlichia , equine infectious anemia virus , and babesia may also be helpful in defining the cause of anemia ( see table : infectious causes of anemia ) .