1. Person
PK PersonID
last_name
first_name
FK1 addressID
pers_is_rel
pers_is_pat
pers_is_phy
pers_is_emp
yyyy
mm
dd
Date_type
area_code
exchange
last_four
Phone_type
Related_Persons
PK related_person_id
FK1 PersonID
relationship
Latitude
Longitude
Location_type
Patient
PK patientID
FK1 PersonID
date_of_birth
gender
ethnicity
occupation
Physician
PK physician_id
FK1 PersonID
fax
phone
Contact
PK contact_id
FK2 patientID
FK1 related_person_id
type_of_contact
category
length_of_time
FK3 addressID
Employee
PK employee_id
FK1 PersonID
phone
Incident
PK incident_id
date_time_occured
diagnosis_probability
FK3 disease_id
FK2 patientID
physician_id
FK1 region_id
employee_person_ID
date_received
date_recorded
date_confirmed
Address
PK addressID
street_address
city
state
zip
location
Test
PK,FK2 physician_id
PK test_id
test_name
test_date
lab_name
type
measure
result
benchmark
interpretation
FK3 patientID
Disease
PK disease_id
disease_name
discovery_date
discovered_by
source
germination_period
Transmission_Mechanism
PK mechanism_id
category
probability_of_transfer
comments
FK1 disease_id
Symptom
PK symptom_id
description
severity
percent_of_cases
time_to_appear
FK1 disease_id
Observed_Symptom
PK,FK1 incident_id
PK symptom_num
description
severity
length_of_time
Region
PK region_id
name
description
population
O