Mutual of Omaha Insurance Co. agreed to cover Massachusetts residents using the HIV prevention drug Truvada for pre-exposure prophylaxis.

The company changed its underwriting practices after an investigation by the Massachusetts Attorney General's office and a separate lawsuit filed by the group GLBTQ Legal Advocates & Defenders. The modification means that Truvada will no longer be a disqualifier for any type of accident, life, sickness or health insurance, including long-term care insurance.

Truvada is a tablet containing two types of antiretroviral medication that block HIV from replicating in the body. The drug is a product of Gilead Sciences Inc.