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What is Transplacental transmission occurs in all, EXCEPT: and explain in detail?
Transplacental (or veical) transmission: Disease agents can be transmitted transplacentally. This is a form of direct transmission. Examples include the TORCH agents (Toxoplasma gondii, rubella virus, cytomegalovirus and herpes virus), varicella virus, syphilis, hepatitis B, Coxsackie B and AIDS. Some of the non-living agents (e.g., thalidomide, diethylstilbestrol) can also be transmitted veically. Ref: Park's textbook of Preventive and Social Medicine, 21st edition, page-93