MMR vaccine. The MMR vaccine contains vaccines that protect against three viral infections: measles, mumps and rubella. It is given as a series of two doses at 12 to 15 months of age and at 4 to 6 years of age.ubella is a viral infection also known as German measles. Rubella infection of children causes a mild rash on the face, swelling of glands behind the ear, occasionally a short-lived swelling of small joints (like the joints of the hand), and low-grade fever.
Key Concepts. Eriksonâs psychosocial theory of development considers the impact of external factors, parents and society on personality development from childhood to adulthood. According to Eriksonâs theory, every person must pass through a series of eight interrelated stages over the entire life cycle[2]. Basic Trust vs. Mistrust â Hope.
Child development is the period of physical, cognitive and social growth that begins at birth and continues through early adulthood. This lesson discusses the theories, stages and major milestones of child development and ends with a quiz to test what you have learned.esson Summary. Child development is a process of maturation that includes infancy, early childhood, middle childhood and adolescence. There are many theories in the field of child development, including those of Freud, Erikson and Vygotsky. Infancy begins at birth and lasts until age two.