Getting Data From Multiple MySQL Tables Using PHP and mysqli

I am trying to draw data from multiple tables that have been indexed to relate to one another. I ran this query in MySQLWorkbench, and it ran successfully. However when I tried to run a PHP test, nothing showed up, not even for the first field. Here is my code:

<?php
$db = new mysqli('host', 'user', 'password', 'database');

if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
$query = "
    SELECT 
        `Contact`.`firstName`,
        `Contact`.`lastName`,
        `ssn`.`ssn`,
        `Contact`.`country`,
        `Allergies`.`allergy`,
        `Allergies`.`allergyType`,
        `Allergies_Contact`.`allergyNotes`,
        `CurrentPrescriptions`.`prescriptionName`,
        `CurrentPrescriptions`.`prescribedDate`,
        `BloodType`.`bloodType`
    FROM
        `database`.`Contact`,
        `database`.`Allergies_Contact`,
        `database`.`Allergies`,
        `database`.`ssn`,
        `database`.`CurrentPrescriptions`,
        `database`.`BloodType`
    WHERE
        `Contact`.`contactKey` = `Allergies_Contact`.`contactKey`
            AND `Allergies`.`allergiesKey` = `Allergies_Contact`.`allergiesKey`
            AND `ssn`.`contactKey` = `Contact`.`contactKey`
            AND `CurrentPrescriptions`.`contactKey` = `Contact`.`contactKey`
            AND `BloodType`.`contactKey` = `Contact`.`contactKey`;
";

$result = $db->query($query) or die($db->error.__LINE__);
if ($result = mysqli_query($db, $query)) {
    while ($row = mysqli_fetch_row($result)) {
        print(row[0]);
    }
    mysqli_free_result($result);
}
mysqli_close($db);
?>

Please tell me what I am doing wrong here, because from what I can see its formatted correctly.