Ultrasound is very useful for looking at soft tissue parts of the body such as the kidneys and bladder. Soft tissues do not show up well on x-ray. Your baby or child may have a renal ultrasound to: 1  find out if there are any blockages in the urinary tract (kidney, ureter, bladder and urethra).
Astrovirus is a type of virus that was first discovered in 1975 using electron microscopes following an outbreak of diarrhoea in humans.stroviruses are associated with 5â9% of cases of gastroenteritis in young children. The occurrence of astrovirus infection varies depending on the season. In temperate climates infection is highest during winter months. This is in contrast to tropical regions where prevalence is highest during the rainy season.
DeÂ·penÂ·doÂ·viÂ·rus. A genus of small defective single-stranded DNA viruses in the family Parvoviridae that depend on adenoviruses for replication. Adeno-Associated Virus. A member of the parvovirus family, which is composed of small viruses with a genome of a single-stranded DNA. AAVs insert genomic material at a specific site on human chromosome 19 with nearly 100% certainty, and are used to construct vectors that introduce genes into cultured cells.