The invention relates to vaccine compositions including CEV serogroup immunogens, attenuated and inactivated viruses of the CEV serogroup and chimeric Bunyaviridae. Retinal thickness around a user-defined circle on the retina is measured by three-dimensional optical coherence tomography or other ophthalmological techniques. Based on said energy, a position for a time domain to a FFT window is selected. Super-production is achieved by the combination of the high level of expression achieved from the T7 polymerase promoter and by cultivating the producer strain cells under culture conditions that delay lytic development of the phage. The present Lactobacillus isolates or their sub-cultured offspring or mutants derived therefrom can be used in the preparation of various food products, and in the manufacture of medicaments for use in the treatment or prevention of gastrointestinal diseases and for use in lowering serum cholesterol.