Antibodies are present in colostrum. IgA is the major inmunoglobulin in colostrum (the first milk secreted by nursing mother). Meristem culture is the cultivation of apical meristem under tissue culture for obtaining virus free plants. Beer contains 3-6% alcohol and is obtained from barley (Hordeum vulgare). While wine is obtained from grapes. Chickengunya is caused by alphavirus.