It's also worth noting that this subclass of Immunoglobulin G is available in extremely low levels among children under the age of 10.
ມັນຍັງມີມູນຄ່າທີ່ຈະແຈ້ງວ່າ subclass ຂອງ Immunoglobulin G ນີ້ມີຢູ່ໃນລະດັບຕໍ່າທີ່ສຸດໃນບັນດາເດັກນ້ອຍອາຍຸຕ່ ໍາ ກວ່າ 10 ປີ. .