German scientists have recently cultivated a genetically modified carrot that can produce hepatitis B vaccine. By eating raw or squeezing juice, it is possible to achieve the effect of vaccination. It is simple and easy, but scientists say that this method requires further tests to verify the efficacy of the vaccine. The existing hepatitis B vaccine is generally obtained through cultivation in the culture medium of yeast cells, which is time consuming, laborious, and costly. As a result, scientists from Gieson University, such as Manny and Norman, began to consider using food as a carrier to cultivate A vaccine that can be continuously regenerated. After a comparative selection, scientists eventually choose carrots because they are easier to transport, store, and grow around the world than tomatoes and lettuce. According to reports, the two scientists first injected the surface protein gene of the hepatitis B virus pathogen into carrots, and further increased the protein concentration with a specific catalyst. Before the carrots matured, scientists used hormones to "activate" the gene m to maximise its Produce a vaccine. Scientists said that the use of raw carrots or juicing can achieve the effect of preventing hepatitis B. Scientists said that further clinical trials are still needed to verify the effectiveness of the vaccine.