I'm really worried about my friend. They had some kind of oral exposure about 5 months ago, and when they got tested at 3 months, they were negative for both HSV 1 and 2, both igm and igg. But heres what's concerninghe did another test after 5 months, and his igg value shot up to 18. Just last week, he was recovering from dengue fever, so I'm wondering if that's somehow causing the igg levels to be high. Should he go for another test just to be sure? If he does have this infection, whats the treatment like? Does this mean he has to deal with it forever now? Any advice would be really helpful.

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Dr Mubarak Parveez B

General Practitioner

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2+ Yrs

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Answered 04/07/2025

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I'm trying to understand the difference between the Dengue IgG and IgM tests and the dengue NS1 test. When should one be used over the other? Are they looking for different things, and does it matter how soon after symptoms show up that you take them?

The NS1 test detects the dengue virus NS1 antigen, while the IgM from 3-5days and IgG after 7 days to detect the dengue virus antibodies.

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I'm trying to understand what it means when the widal test result says "non reactive." Could you explain this in detail? Also, I've been dealing with typhoid for about 4 months now and it just won't go away. Can you recommend any good doctors for treating typhoid? I'm really worried since it's been such a long time.

-A "non-reactive" result in a Widal test means that no significant antibodies against *Salmonella* (the bacteria causing typhoid fever) were detected in your blood. This usually indicates you don't currently have an active infection, but its not always

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I had a Mantoux test about three weeks ago, and I've noticed that there's still some redness on my hand that hasn't gone away. Is this normal or should I be concerned?

it resolves on its own

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