Brazil’s Health Ministry will distribute 66 million condoms—10 million more than last year—during this month’s carnival festivities due to a spike in the HIV infection rate among woman over 50, the Inter Press Service news agency reports.

According to the article, a survey conducted by the country’s Health Ministry found that 55.3 percent of Brazilian women between the ages of 50 and 64 regularly have sex but that only 28 percent practice safe sex—such as condom use—with casual partners.

Maria Luiza Pereira, of Maria Mulher, a nongovernmental Afro-Brazilian women’s organization, believes that older women are more vulnerable to contracting the virus because of factors such as infidelity and low condom use that result from the decreased chances of pregnancy.

In the coming weeks, a prevention campaign with the slogan “Sex has no age limit. Neither does protection” will be launched in Brazil; it’ll appear in printed material in addition to television and radio spots.