inclusion criteria: 1. patients must have active solid tumor malignancy diagnosis 2. on active chemotherapy 3. received two prior sars-cov2 pfizer vaccines 4. age ≥ 18 years 5. ability to understand and the willingness to sign a written informed consent 6. agree to comply with study procedures 7. subjects previously enrolled under the main study

inclusion criteria: 1. patients must have active solid tumor malignancy diagnosis 2. on active chemotherapy 3. received two prior sars-cov2 pfizer vaccines 4. age ≥ 18 years 5. ability to understand and the willingness to sign a written informed consent 6. agree to comply with study procedures 7. subjects previously enrolled under the main study

inclusion criteria: patients must have active solid tumor malignancy diagnosis on active chemotherapy received two prior sars-cov2 pfizer vaccines age ≥ 18 years ability to understand and the willingness to sign a written informed consent agree to comply with study procedures subjects previously enrolled under the main study

inclusion criteria: patients must have active solid tumor malignancy diagnosis on active chemotherapy received two prior sars-cov2 pfizer vaccines age ≥ 18 years ability to understand and the willingness to sign a written informed consent agree to comply with study procedures subjects previously enrolled under the main study

inclusion criteria: 1. patients must have active solid tumor malignancy diagnosis 2. on active chemotherapy 3. received two prior sars-cov2 pfizer vaccines 4. age ≥ 18 years 5. ability to understand and the willingness to sign a written informed consent 6. agree to comply with study procedures 7. subjects previously enrolled under the main study

inclusion criteria: 1. patients must have active solid tumor malignancy diagnosis 2. on active chemotherapy 3. received two prior sars-cov2 pfizer vaccines 4. age ≥ 18 years 5. ability to understand and the willingness to sign a written informed consent 6. agree to comply with study procedures 7. subjects previously enrolled under the main study

inclusion criteria: 1. patients must have active solid tumor malignancy diagnosis 2. on active chemotherapy 3. received two prior sars-cov2 pfizer vaccines 4. age ≥ 18 years 5. ability to understand and the willingness to sign a written informed consent. 6. agree to comply with study procedures.

inclusion criteria: 1. patients must have active solid tumor malignancy diagnosis 2. on active chemotherapy 3. received two prior sars-cov2 pfizer vaccines 4. age ≥ 18 years 5. ability to understand and the willingness to sign a written informed consent. 6. agree to comply with study procedures.