"Tests for infectious disease include serologic viral markers, namely, Hepatitis C (HCV), Human immunodeficiency virus (HIV) type I and
II, Hepatitis B virus (HBV) and Human T-cell Lymphotropic virus (HTLV) I and II , nucleic acid test and bacterial detection test which performed only on platelet components"
In the above statement, the verb performed does it apply to the nucleic acid test or the bacterial detection test or both?
The end of this sentence is not correct English. g. whether it actually says "which are performed" rather than "which performed".
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The end of this sentence is not correct English. Please check that you have typed everything correctly, e.g. whether it actually says "which are performed" rather than "which performed". Please check that all words and punctuation are copied exactly correctly.
I found the text online here: http://react-profile.org/ebook/SEHA/index.html#78/z
The writer is not a native English speaker, and he left out a word: "which ??? performed only on platelet components." If the missing word was "is", it would be only the bacterial detection test. If it was "are"