What does "seroconversion" mean?

Change between the states of seronegativity and seropositivity, in either direction: either the process of this change or an instance of it.

Seroconversion

noun

noun ·Rare ·Advanced level

Noun

1
Change between the states of seronegativity and seropositivity, in either direction: either the process of this change or an instance of it. broadly, countable, uncountable
2
Change between the states of seronegativity and seropositivity, in either direction: either the process of this change or an instance of it.; Such change in the negative-to-positive direction, as a result of infection or immunization: the development of specific antibodies in the blood serum. broadly, countable, uncountable

From sero- + conversion.

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