I have a question that arose while researching some information regarding my test results and Valtrex use.
In my case, I took four 500 mg tablets of Valtrex at 12-hour intervals starting two days after the initial suspected exposure. About two weeks later, I took three tablets at 12-hour intervals over a weekend. After that, I intermittently took 2–3 tablets every 1–2 weeks over the weekends, also at 12-hour intervals. In total, I took 14 tablets of Valtrex 500 mg over a 70-day period.
As for my test results:
At 8 weeks (55 days after exposure), I had an IgG test using the CLIA method and received a value of 0.1 (negative).
At 10 weeks (70 days after exposure), I had another IgG test using the ECLIA method, and the result was also 0.1 (negative).

The two tests were conducted at different laboratories, but both used the same reference ranges:                                                   ≥1.0 = positive                                                                                                                                     0.5–1.0 = borderline                                                                                                                               <0.5 = negative

I believe the 8-week test used a DiaSorin analyzer, while the 10-week test used a Roche analyzer. I also confirmed that, at the 10-week testing laboratory, most people who test negative typically receive a result of 0.1 or 0.11
My question is: could my intermittent use of Valtrex have had any significant effect on these test results?Also, do you think further testing would be necessary in my case? thank you

To provide a more precise explanation, for example, if the suspected exposure occurred on July 1, I took Valtrex from July 3 to July 4 (a total of 4 tablets at 12-hour intervals). Then, from July 16 to July 17, I took 3 tablets, July 23 to July 24  i took 2 tablets . About two weeks later, I took 3 tablets over another two-day period.

In other words, there was always at least a 7-day gap between each course, and although the doses were not continuous, the total number of days on which I took Valtrex was approximately 12.