Mycoplasma pneumoniae antibody 1:1280, which indicates an elevated titer that is more than four times the normal antibody titer, indicates an infection with Mycoplasma pneumoniae.
Normal antibody titer of Mycoplasma pneumoniae antibody is below 1:32, and there are two kinds of antibodies, IgM and IgG:
1. IgM is a diagnostic indicator of acute phase infection. The incubation period of Mycoplasma pneumoniae infection is 2-3 weeks, and when the patient develops symptoms, the level of IgM is already quite high, and the IgM titer of 1:1280 indicates that it is in the acute phase of Mycoplasma pneumoniae infection.
2. IgG appears later than IgM, with a significant increase suggesting a recent infection and a significant decrease suggesting a late stage of infection, and the patient’s IgG titer of 1:1280 also suggests that the patient has an existing Mycoplasma pneumoniae infection.
Thus both IgM and IgG titer 1:1280 indicate that the patient has an existing Mycoplasma pneumoniae infection. Mycoplasma pneumoniae can cause acute inflammatory changes in the respiratory tract and lungs, and if there are symptoms such as cough, sputum, fever, generalized muscle aches and pains, and recent inflammatory changes on lung imaging, regular treatment in a hospital is needed.