There is no such thing as which of the five positive antibodies to the eb virus in young children is the most frightening, and the different antibody indicators represent different meanings, which need to be judged by the physician in conjunction with the medical history and clinical symptoms. The five antibodies mainly include VCA-IgM, VCA-IgG, VCA-IgA, EBNA-IgG, EBNA-IgA, and the meanings of these antibodies are as follows: 1. VCA-IgM: If a child is positive for VCA-IgM, it mostly suggests that the patient belongs to EB primary infection, which may be due to the development of the disease to the acute infection stage. 2. VCA-IgG: If the child is positive for VCA-IgG, it suggests that the child has been infected with EBV and may be positive for life, or may be in the early stages of asymptomatic infection. 3. VCA-IgA: If the child is positive for VCA-IgA, it may suggest that the child has recently been infected with EBV, and if the child continues to be positive for this antibody, it means that the chance of nasopharyngeal cancer is relatively high. 4. EBNA-IgG: EBNA-IgG is positive, which may be due to the EBV is in the stage of active viral proliferation, or recently infected with EBV. 5. EBNA-IgA: EBNA-IgA is positive, and long-term positivity is associated with nasopharyngeal carcinogenesis, and is more relevant than VCA-IgA. It is recommended that young children with abnormal EBV antibody results should be seen promptly by a physician, who should take into account the child’s clinical symptoms and medical history.