However, it's worth noting that while the child would be a U.S citizen by birth they may also be considered a Jamaican citizen by descent, given that Jamaica allows for dual citizenship. For the child to acquire Jamaican citizenship by descent, certain requirements and procedures may need to be followed, such as registering the birth with the Jamaican authorities.
Therefore, it's advisable for the Jamaican parents to contact the Jamaican Embassy or Consulate in the United States to obtain the necessary information and assistance regarding their child's dual citizenship status and any related documentation or requirements.