{"id":9381,"date":"2021-03-11T14:41:07","date_gmt":"2021-03-11T14:41:07","guid":{"rendered":"https:\/\/www.vdh.virginia.gov\/disease-prevention\/?page_id=9381"},"modified":"2025-11-17T14:35:29","modified_gmt":"2025-11-17T14:35:29","slug":"network-detection-and-response","status":"publish","type":"page","link":"https:\/\/www.vdh.virginia.gov\/disease-prevention\/disease-prevention\/virginia_hiv_hepatitis_surveillance\/network-detection-and-response\/","title":{"rendered":"Network Detection and Response"},"content":{"rendered":"<p><strong>What is HIV Network Detection and Response?<\/strong><\/p>\n<p>Network Detection and Response (NDR), previously known as Cluster Detection and Response (CDR), is a program developed by the Centers for Disease Control and Prevention (CDC) focused on understanding and stopping the spread of HIV. This program uses HIV laboratory data to identify groups of related HIV infections, called networks. Identifying these groups is critical in the fight to end the HIV epidemic, because HIV spreads quickly in groups of related HIV infections. Once individuals in those groups are identified, health departments can focus HIV prevention and treatment efforts. The goals of the program are to:<\/p>\n<ul>\n<li>Collect HIV data from laboratories;<\/li>\n<li>Use research techniques to identify groups of related HIV infections, study HIV mutations, and describe HIV transmission patterns; and<\/li>\n<li>Quickly treat HIV in groups of related HIV infections, and stop further spread of HIV.<\/li>\n<\/ul>\n<p><strong>\u00a0<\/strong><\/p>\n<p><strong>HIV Network Detection and Response &#8211; Key Things to Know:<\/strong><\/p>\n<ul>\n<li><strong>Importance of Identifying Related HIV Infections:<\/strong> Network detection is a relatively new approach in the fight to end the HIV epidemic. This method uses routine research techniques to identify groups of related HIV infections that are very similar. It is important to identify these groups because HIV spreads at a rate over 10 times higher in groups of related HIV infections compared to all people living with HIV.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-14128 aligncenter\" src=\"https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/NDR-graphic-150x150.jpg\" alt=\"\" width=\"357\" height=\"357\" srcset=\"https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/NDR-graphic-150x150.jpg 150w, https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/NDR-graphic-300x300.jpg 300w, https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/NDR-graphic.jpg 522w\" sizes=\"auto, (max-width: 357px) 100vw, 357px\" \/><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Laboratory Data<\/strong>: HIV is considered a <a href=\"https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2024\/05\/VIRGINIA-REPORTABLE-DISEASE-LIST.pdf\" target=\"_blank\" rel=\"noopener\">reportable disease<\/a>\u00a0in Virginia, meaning that HIV laboratory data are sent to the Virginia Department of Health (VDH). Researchers are able to analyze that data to identify groups of related HIV infections.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9391 size-large\" src=\"https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2021\/03\/CDR_Figure2-1024x408.png\" alt=\"\" width=\"640\" height=\"255\" srcset=\"https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2021\/03\/CDR_Figure2-1024x408.png 1024w, https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2021\/03\/CDR_Figure2-300x119.png 300w, https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2021\/03\/CDR_Figure2-768x306.png 768w, https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2021\/03\/CDR_Figure2.png 1155w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Directing Prevention and Treatment Services: <\/strong>Once a group of related HIV infections is identified, health department staff are able to direct prevention and treatment services where they are needed most. As a result, health department staff are able to prevent HIV from spreading in a community.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9393\" src=\"https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2021\/03\/CDR_Figure4.png\" alt=\"\" width=\"640\" height=\"257\" srcset=\"https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2021\/03\/CDR_Figure4.png 964w, https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2021\/03\/CDR_Figure4-300x120.png 300w, https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2021\/03\/CDR_Figure4-768x308.png 768w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Additional Resources:<\/strong><\/p>\n<p><a href=\"https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/cdc_hiv_cdr_fact-sheet_2025.pdf\" target=\"_blank\" rel=\"noopener\">CDC National CDR Fact Sheet 2025<\/a><\/p>\n<p><a href=\"https:\/\/www.vdh.virginia.gov\/content\/uploads\/sites\/10\/2025\/06\/CDR-Overview-for-Clinicians-2025-05.pdf\" target=\"_blank\" rel=\"noopener\">HIV Cluster and Outbreak Detection and Response: Information for Clinicians<\/a><\/p>\n<p><a href=\"https:\/\/www.cdc.gov\/hivpartners\/php\/cdr\/index.html\">https:\/\/www.cdc.gov\/hivpartners\/php\/cdr\/index.html<\/a><\/p>\n<p>For more information on the implementation of the NDR program at VDH, please <a href=\"https:\/\/www.vdh.virginia.gov\/disease-prevention\/contact-us\/\">contact us<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is HIV Network Detection and Response? Network Detection and Response (NDR), previously known as Cluster Detection and Response (CDR), is a program developed by the Centers for Disease Control and Prevention (CDC) focused on understanding and stopping the spread of HIV. This program uses HIV laboratory data to identify groups of related HIV infections, [&hellip;]<\/p>\n","protected":false},"author":259,"featured_media":0,"parent":148,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"tags":[],"class_list":["post-9381","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Network Detection and Response - Disease Prevention<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vdh.virginia.gov\/disease-prevention\/disease-prevention\/virginia_hiv_hepatitis_surveillance\/network-detection-and-response\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Network Detection and Response - Disease Prevention\" \/>\n<meta property=\"og:description\" content=\"What is HIV Network Detection and Response? 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