Also known as gene splicing and DNA recombination, molecular genetics is based on the theory of molecular biology and microbiology as a means of modern methods, different sources of genes according to a pre designed blueprint, hybrid DNA molecules are constructed in vitro and then introduced into living cells to change the original genetic characteristics of organisms, to obtain new varieties, and to produce new products. Genetic engineering technology provides a powerful means for the study of gene structure and function.
From the entry of the parasite into the human body or animals, the establishment of the parasitic relationship, the development of the epidemic of parasitic diseases, and from the compression and control of the epidemic of parasitic diseases to the termination and long-term consolidation of the epidemic, both are areas in which parasitology must be elucidated both theoretically and practically. For example:
1 Parasitology is from the perspective of the etiology of parasitic diseases and the dynamics of the pathogen population, to demonstrate the basic principles of the above process, and to directly reveal the laws of the prevalence of parasitic diseases. From the genetic and ecological variation of the pathogen population, the change of the character of epidemic area can be predicted and confirmed. To explore the pathophysiological changes and clinical manifestations from the relationship between pathogen proliferation, pathogenicity and external conditions.
2. From the perspective of parasitology, to monitor, forecast and prevent the resurgence of human or zoonotic parasitic diseases that have recently emerged in a certain area or have been controlled or eliminated.
3 from the study of the metabolism of the parasite, it is suggested to synthesize new antiparasitic drugs.