🦠microbiology review

Vertical direct contact transmission

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Vertical direct contact transmission occurs when a disease is transmitted from parent to offspring during the processes of reproduction, pregnancy, or childbirth. This mode of transmission can involve pathogens crossing the placenta or being passed through breast milk.

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5 Must Know Facts For Your Next Test

  1. Vertical direct contact transmission is often associated with congenital infections.
  2. Common diseases transmitted this way include HIV, syphilis, and rubella.
  3. Transmission can occur during pregnancy, delivery, or breastfeeding.
  4. Placental transfer is a major route for many viral and bacterial infections in utero.
  5. Preventive measures include prenatal screening and appropriate maternal treatment.

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