A new HSV-2 infection would not typically cause a decrease in the IgG levels from 2.31 to 1.60 in the span of 4 months. The immune system produces the IgG antibodies in response to an HSV-2 infection ...

When it comes to herpes (HSV2), a new infection can sometimes show fluctuations in IgG antibody levels over time. Seeing a decrease from 2.31 to 1.60 within four months could be due to various factors, including changes in the immune response or testing variability.

It's essential not to solely rely on numerical values but also consider clinical symptoms and other diagnostic tests for an accurate assessment of your condition. Consult with a healthcare provider or specialist for further evaluation and guidance tailored to your specific situation.