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.
Mumps is a virus that classically causes painful swelling of the parotid glands (saliva glands). Before the vaccine became available, it was an extremely common childhood infection.When adults or adolescents get mumps the infection is more serious, often with orchitis (inflammation of the testicles).umps has been a common disease for centuries. Hippocrates wrote about it almost 2500 years ago. Itâs not all that serious an illness. It doesnât even affect male fertility the way that most people think.