I am worried about a exposure. May you please tell me when you talk about the conclusiveness of the 4th generation HIV test? are you referring to 4th generation lab test or 4th generation rapid test? Is CE marked Alere HIV Combo conclusive at 28 days? Different countries have different guidelines, One of the Clinic in Singapore considers it conclusive at 28 days. If i take the test at 28 days, will it be conclusive?