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The investigators would remind the guardians of observation after immunization via sending short message and collect the information of AEFI by two ways, short message/telephone and website questionnaire.
The investigators will compare the rate between active and inactive surveillance of AEFI
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| sending message | Experimental | The investigators would send the tip to the children's guardian |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| sending message | Other | Sending the suggestive short message |
|
| Measure | Description | Time Frame |
|---|---|---|
| Incidence about AEFI | Incidence about AEFI comes from the rate between number of adverse event and the all quantity for immunization about MR and APDT | 1.5years |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Zhaoyun Wang, Doctor | Beijing Chaoyang District Centers for Disease Control and Prevention | Principal Investigator |
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| ID | Term |
|---|---|
| D064420 | Drug-Related Side Effects and Adverse Reactions |
| ID | Term |
|---|---|
| D064419 | Chemically-Induced Disorders |
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