Yes and No. The Church, particularly the Catholic Church, has been helping the fight against HIV/AIDS by being the biggest provider of care to HIV/AIDS patients around the world. However, their stance on certain issues have been unrealistic and harmful when it comes to preventing the spread of HIV/AIDS.

When it comes to providing care for patients of HIV/AIDS, the Catholic Church, through its worldwide congregations and volunteer organizations, have been leading the charge. This includes providing support to hospitals, dispensaries, and orphanages involved in AIDS-related activities, providing HIV treatment, care, and support to patients, and aiding in the efforts to prevent the transfer of infection from mother to child, among others. 

In fact, according to the Vatican's estimates, organizations related to the Catholic Church provide "25% of all HIV treatment, care, and support throughout the world". But it's not just the Catholic Church, either. The World Health Organization estimates that between 30% and 70% of of all health care in Africa are provided by faith-based groups. 

Thus, it is important to recognize the important role that the Catholic Church has played in fighting against HIV/AIDS. 

Unfortunately, the Catholic Church has also had it's shortcomings. One of the biggest criticisms thrown against them is their unrealistic stance on issues that have caused more harm than good. 

One of these issues is with regard to condom use. It is important to point out that experts and practitioners from the Centers of Disease Control to the World Health Organization, and even the US Food and Drug Administration all agree that correct and consistent condom use are "highly effective" in preventing the spread of HIV. According to the World Health Organization, condoms have an "80% or greater protective effect against the sexual transmission of HIV". 

However, despite the overwhelming evidence, the Catholic Church has wavered between rejecting it to being reluctant when it comes to accepting condom use as integral to preventing the spread of the disease. Instead, they focused on abstinence and marital fidelity. Granted, abstinence and marital fidelity are effective ways to prevent the spread of HIV/AIDS. After all, you can't get infected if you avoid sex outside marriage. Unfortunately, this is unrealistic. You cannot expect young adults to abstain from sex until marriage. And you cannot expect all married couples to remain loyal to their spouses for the entirety of their marriage. 

To make things worse, some Church leaders didn't just ignore condom with their HIV/AIDS prevention efforts, they even gave misinformation. For example, in 2003 a senior spokesperson for the Vatican, claimed that "the AIDS virus...can easily pass through the 'net' that is formed by the condom". In other words, condoms are ineffective. And this belief was echoed by church leaders in Asia, Africa, and Latin America, possibly affecting the trust Catholics, especially those in poor communities, have on condom use. 

To be fair, the Catholic Church's stance on the issue has somewhat "relaxed" over recent years. They no longer criticize condoms as an ineffective defense against HIV/AIDS. Nonetheless, they are still not endorsing it. So, in this respect, the Church is actually hurting the fight against HIV/AIDS. 

Thus, it is clear that when it comes to fighting the HIV/AIDS epidemic, the Church, particularly the Catholic Church has been a controversial actor. On one hand, they play a crucial role in providing care, treatment, and support to HIV/AIDS patients and their families. However, by ignoring the importance of condom use, they are also endangering the efforts to prevent the spread of the disease. 

Hope this helps.

Sources:

1. Catholic Church and HIV/AIDS - Wikipedia Article. https://en.wikipedia.org/wiki/Catholic_Church_and_HIV/AIDS
2. Condoms for HIV prevention. http://www.who.int/hiv/topics/condoms/en/
3. AIDS and the Catholic Church. https://journalism.nyu.edu/publishing/archives/pavement/city/aids-and-the-catholic-church/index.html

Yes!! It does Help in the Crusade Against AIDS which is a foremost Sexually Transmitted Diseases.

AIDS is Predominantly Transmitted From One Patient To Another through Sexual Intercourse, either homogamously or Heterogamously.

The Church , Frows Seriously as being a SIN any Sexual Relationship consummated outside Marriage , which MUST be MONOGAMOUS , that is between a Man and a Woman.

As Sexual Intercourse is Between Couples Alone, there Would Be a little Chance of the Disease being Transmitted to another Party.

In the same Vein, the Church Condemns Fornication , which is Sexual Relationship before Marriage. As This is enforced; there is little Chance of the Disease Being Transmitted from one yet to marry Adult to Another

It Should be noted , however that AIDS can also be transferred through blood contacts between the Healthy and the Infected. The Church can only do little, through Appreciate Information in this Respect.

I Do Hope This Addressed Your Curiosity Adequately!!

Church help the fight against Aids a lot. My church alone has done several awareness programs about Aids to her members and also members of the community in which it is located. Church also preach against premarital sex and warn its members of the dangersIo invoiced in such practice. So I'll say that church is helping in fighting against the spread of Aids.