In an era of impressive technical progress and constantly improving healthcare provision we are facing new problems such as overpopulation and an insufficient supply of food, especially in developing countries. Norway is the world's largest producer of farmed salmon with a production share of 55.3% and therefore, provides an essential contribution to the supply of salmon worldwide. In 2021 Norway exported a record 1.1 million tonnes of salmon despite the COVID-19 pandemic. However, many microbes infect farmed salmon, and the infection is often devastating for the fish causing the destruction of crop that results in tremendous economic losses each year for Norway. Therefore, our research focuses on understanding how these microbes affect the fish health and to develop new disease control strategies that guarantee the supply of healthy and sustainable fish in the future.