Why is "Abstinence, be faithful, use a condom" trending?

Wikipedia Overview

Abstinence, be faithful, use a condom, also known as the ABC strategy, abstinence-plus sex education or abstinence-based sex education, is a sex education policy based on a combination of "risk avoidance" and harm reduction which modifies the approach of abstinence-only sex education by including education about the value of partner reduction, safe sex, and birth control methods. Abstinence-only sex education is strictly to promote the sexual abstinence until marriage, and does not teach about safe sex or contraceptives. The abstinence-based sex education program is meant to stress abstinence and include information on safe sex practices. In general terms, this strategy of sex education is a compromise between abstinence-only education and comprehensive sex education. The ABC approach was developed in response to the growing epidemic of HIV/AIDS in Africa, and to prevent the spread of other sexually transmitted infections. This approach has been credited by some with the falling numbers of those infected with AIDS in Uganda, Kenya and Zimbabwe, among others. From 1990 to 2001, the percentage of Ugandans living with AIDS fell from 15% to between 5 and 6%. This fall is believed to result from the employment of the ABC approach, especially reduction in the number of sex partners, called "Zero-Grazing" in Uganda.