IGHE and susceptibility to pneumonia measurement: Table 1 shows the physical status, family history, and sociodemographic characteristics of the three groups.  Table 2 shows the total and specific IgE levels, prevalence and intensity of Ascaris infection, and pneumonia history. The first group consisted of 50 (26%) children who had the highest titers of the total, anti-Ascaris IgEs, anti-Dp, and anticockroach IgEs and the lowest frequency of pneumonia episodes. The second group consisted of 114 (58%) children who had a moderate level of pneumonia history and the lowest titers of the total and anti-Ascaris IgEs.