As folate is vital in the first trimester of pregnancy for healthy fetal development, the use of antifolates is strongly contraindicated in pregnancy and carries significant teratogenic risk. Low doses of methotrexate can deplete folate stores and cause side-effects that are similar to folate deficiency.
Cause of Adult Mumps. Adult mumps is caused by an infection with the mumps virus, which is found worldwide. The mumps virus is an RNA (ribonucleic acid) virus from the family Paramyxovirus of the genus Rubulavirus. The mumps virus only infects humans.
Symptoms and Causative Agent. Mumps is caused by a virus from the genus Rubulavirus. Its symptoms include low-grade fever, respiratory problems, and most notably swelling of the salivary glands below the ear. The affected glands are called the parotid glands, and the swelling is known as parotitis.ymptoms and Causative Agent. Mumps is caused by a virus from the genus Rubulavirus. Its symptoms include low-grade fever, respiratory problems, and most notably swelling of the salivary glands below the ear. The affected glands are called the parotid glands, and the swelling is known as parotitis.