Conclusion If a healthy puber or middle age individual had repeated pneumonia or respiratory failure, he may have risk of HIV/AIDS.To examine serum HIV antibody can reduce missed diagnosis.

• 结论对既往身体健康的青壮年，如反复发生肺炎或呼吸衰竭应警惕HIV/AIDS的可能，及时检查血抗HIV抗体，减小漏诊。