The reports from the separate communities were so conflicting that to attempt to analyze them leads only to confusion. No reports of harmful effects from the use of the vaccine were received, and several physicians who attended sick employees say that, even though the figures do not show it, they feel certain that the vaccinated persons in general were not as sick as those who were not vaccinated. On account of the conditions under which the vaccinations were done and the reports compiled, Dr. Sherman has not felt justified in making a report, fearing that erroneous conclusions might be drawn from the data. We are greatly indebted to him for the use of his reports, without which our account of the influenza epidemic in Pittsburgh would have been very incomplete. 2. Another large steel corporation who used vaccine but asked that their names be withheld furnished the following report. During the epidemic the company offered free vaccination to its 27,000 employees and their families. Commercial mixed vaccines were used, three injections given, and vaccination begun on October 19, which was about the time of the peak of the epidemic in Pittsburgh. The results include a record of all employees who lost over six days between October 1 and November 30. ───────────────────────────────┬────────────┬───────────┬─────────── EMPLOYEES │ MORBIDITY │ PNEUMONIA │ MORTALITY ───────────────────────────────┼──────┬─────┼─────┬─────┼─────┬───── │ No. │ % │ No. │ % │ No. │ % ───────────────────────────────┼──────┼─────┼─────┼─────┼─────┼───── Received only one dose 3,895│ 511│13.13│ 31│ 0.8│ 28│ 0.72 Received only two doses 3,329│ 414│12.44│ 40│ 1.2│ 19│ 0.57 Received all three doses 9,897│ 468│ 4.75│ 46│ 0.46│ 32│ 0.32 ───────────────────────────────┼──────┼─────┼─────┼─────┼─────┼───── Total of above 17,119│ 1393│ 8.14│ 117│ 0.68│ 79│ 0.46 Received no doses 10,036│ 1522│15.17│ 154│ 1.53│ 106│ 1.06 ───────────────────────────────┼──────┼─────┼─────┼─────┼─────┼───── Total for both groups 27,155│ 2915│11.66│ 271│ 1.10│ 185│ 0.76 ───────────────────────────────┴──────┴─────┴─────┴─────┴─────┴─────