Ikiti yenzelwe ukuchongwa kwe-IgM antibodies egazini lomntu ngokuchasene neentsholongwane ezininzi ezibangela izifo zokuphefumula.Ikhethekileyo kwiMycoplasma Pneumonia, Chlamydia Pneumonia, Respiratory Syncytial Virus, Adenovirus, kunye neCoxsackievirus Group B.
