Maryland Immunization Information System (ImmuNet)

Please note that ImmuNet will be down the following dates/times (in EDT):

    • Thursday, 04/03/2025 - ImmuNet is scheduled for release 43 and will be down from 5:30​​ pm​ to 6:30 pm today.​
    • Monthly maintenance every 2nd Saturday of the month from 5:30 pm to 9:30 pm.
Please plan your work accordingly for these downtimes.​

When ImmuNet is back up each time, be sure to clear your cache and refresh the page (go to your browser history to clear your browsing history - CTL-SHIFT-DEL in Chrome) before you sign in at mdimmunet.org​.

Thank You!​