Two opportunistic infections that can appear as AIDS progress are pneumonia and

1) chlamydia
2)syphilis

Chlamydia

Explanation:

Chlamydia is a common sexually transmitted disease. It is caused by bacteria called Chlamydia trachomatis. It can infect both men and women. Women can get chlamydia in the cervix, rectum, or throat.

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im not intirely sure but i think the anwser is d relative humidity