Monitor Mailboxes Corrupted

Hello

When I run the command Get-Mailbox -Monitoring I get the following warnings / errors.

Name                      Alias                ServerName       ProhibitSendQuota
----                      -----                ----------       -----------------
HealthMailbox3ba160c4f... HealthMailbox3ba1... <MailboxServer>  Unlimited
WARNING: The object bwdsb.on.ca/Microsoft Exchange System Objects/Monitoring
Mailboxes/HealthMailbox3ba160c4f02c43709ef73a7236fdaa6b has been corrupted, and it's in an inconsistent state. The
following validation errors happened:
WARNING: Database is mandatory on UserMailbox.
WARNING: Database is mandatory on UserMailbox.
HealthMailbox0e7415faa... HealthMailbox0e74... <MailboxServer>  Unlimited
WARNING: The object bwdsb.on.ca/Microsoft Exchange System Objects/Monitoring
Mailboxes/HealthMailbox0e7415faaf0345f58f085d9900acf7cb has been corrupted, and it's in an inconsistent state. The
following validation errors happened:
WARNING: Database is mandatory on UserMailbox.
WARNING: Database is mandatory on UserMailbox.
HealthMailbox418d8ac8d... HealthMailbox418d... <MailboxServer>   Unlimited
WARNING: The object bwdsb.on.ca/Microsoft Exchange System Objects/Monitoring
Mailboxes/HealthMailbox418d8ac8d3ec4a21b6a26e04f70dae7e has been corrupted, and it's in an inconsistent state. The
following validation errors happened:
WARNING: Database is mandatory on UserMailbox.
WARNING: Database is mandatory on UserMailbox.

How do I go about fixing / recreating these healthMailboxes.    I'm running Exchange 2013 CU1 with two mailbox servers in a DAG with two seperate CAS servers.   

Thanks