Biological Therapy in Treating Patients With Advanced Cancer

DISEASE CHARACTERISTICS: * Histologically confirmed advanced malignancy that expresses HER2/neu * Stage IIA breast cancer with more than 6 positive lymph nodes * Stage IIB, IIIA, or IIIB breast cancer * Stage III ovarian cancer * Lymph node positive gastric cancer * Metastatic tumor * No measurable or evaluable disease after standard treatment * No previously irradiated or newly diagnosed CNS metastases * Hormone receptor status: * Not specified PATIENT CHARACTERISTICS: Age: * 18 and over Menopausal status: * Not specified Performance status: * Karnofsky 80-100% Life expectancy: * Greater than 6 months Hematopoietic: * WBC at least 3,000/mm\^3 * Hemoglobin at least 9 mg/dL * Platelet count at least 100,000/mm\^3 Hepatic: * Bilirubin less than 2.0 mg/dL * No hepatic disease, including viral hepatitis Renal: * Creatinine less than 2.5 mg/dL Cardiovascular: * No New York Heart Association class III or IV heart disease Pulmonary: * No asthma or chronic obstructive pulmonary disease Immunologic: * Must have positive intradermal delayed hypersensitivity test for at least 1 of the following: * Candida * Mumps * Tetanus * Trichophyton * Histoplasmin * No prior autoimmune disease including, but not limited to, the following: * Inflammatory bowel disease * Systemic lupus erythematosus * Ankylosing spondylitis * Scleroderma * Multiple sclerosis Other: * Not pregnant or nursing * Negative pregnancy test * Fertile patients must use effective contraception * HIV negative * Hepatitis B surface antigen and hepatitis C antibody negative * No other concurrent serious chronic or acute illness or infection (including urinary tract infection) * No known shellfish or iodine allergy * No other prior or concurrent malignancy except for nonmelanoma skin cancer, cervical cancer, or controlled superficial bladder cancer * No medical or psychological condition that may preclude study PRIOR CONCURRENT THERAPY: Biologic therapy: * No other concurrent immunotherapy Chemotherapy: * At least 4 weeks since prior chemotherapy and recovered * No concurrent chemotherapy Endocrine therapy: * Concurrent hormonal therapy allowed (tamoxifen, raloxifene, toremifene, and all aromatase inhibitors) * At least 4 weeks since prior steroid or immunosuppressive therapy (e.g, azathioprine or cyclosporine) Radiotherapy: * Prior radiotherapy allowed except to cranium * At least 4 weeks since prior radiotherapy and recovered * At least 12 weeks since prior strontium chloride Sr 89 * No concurrent radiotherapy Surgery: * At least 4 weeks since prior surgery and recovered Other: * Concurrent bisphosphonates allowed * No prior hepatitis B immunization