Malaria is an infectious disease caused by Plasmodium through the bite of female mosquitoes, posing a significant threat to global public health. Since 2000, humans have adopted various measures to prevent and control malaria, but due to the impact of COVID-19, the number of malaria cases has increased rather than decreased, making malaria vaccines one of the focal points for controlling the disease. The Plasmodium that infects humans mainly includes Plasmodium falciparum and Plasmodium vivax. The life cycle of Plasmodium includes the pre-erythrocytic stage, the blood stage, and the mosquito stage. Two vaccines, RTS,S/AS01E, and R21/Matrix-M, which have been pre-qualified by the World Health Organization to target the pre-erythrocytic proteins of Plasmodium falciparum. The clinical trial data show reduction in malaria mortality rates among children, and mass vaccination is currently underway in Africa. However, no malaria vaccines targeting other stages or antigens have yet entered phase III clinical trials. This article describes the hazards and prevention of malaria, summarizes malaria vaccines designed in recent years for the three stages of the Plasmodium life cycle: the pre-erythrocytic stage, the blood stage, and the mosquito stage, and demonstrates the challenges and ideas in the field of malaria vaccine research and development, aiming to provide some reference for the development of novel malaria vaccines.

Objective To investigate the preparation of influenza virus vaccine without thimerosal for children dose and its sta-bility .Methods H1N1 ,H3N2 ,B-type influenza virus were inoculated into allantoic fluid to prepare three batches of influenza virus vaccine without thimerosal for children dose and the vaccine stability test was performed .Single radial immunodiffusion(SRID) and enzyme-linked immunosorbent assay(ELISA) were used to detect the concentration of hemagglutinin and egg albumin .Total protein concentration ,appearance ,sterility test ,endotoxin ,free formaldehyde and the pH value of vaccine were also measured .Results The pH value of vaccine was 7 .2 ,with total protein concentration of 182-189 mg/mL .Hemagglutinin concentrations of H1N1 ,H3N2 and B-type influenza virus decreased when they had been placed in 2-8 ℃ for 3 ,6 ,9 ,12 ,18 months or (37 .0 ± 2 .0) ℃ for 7 ,14 days ,however ,they maintained at 6 .0 μg/0 .25 mL or more at last .Conclusion Influenza virus vaccine without thimerosal for chil-dren dose shows improved safty and is accord with the standard of Chinese Pharmacopoeia(2010 edition) .

Objective To clarify the position,figure and connections with adjacencies in the pallial thickening(Pth),and provide essential parameters for its function study. Methods The coronal serial sections of 60?m thickness in gekko gecko brain were made by cryo-microtome,and Nissl staining was used.Pictures were taken in each coronal section containing the Pth and the size of Pth in each section was measured.One of them was chosen for the three-dimensional reconstruction.3D MAX was used as the tool software to rebuild the nucleus. Results 1.The Pth was located in the rostral part of the telencephalon,the lateral part of anterior dorsal ventricular ridge,the medial part of the lateral cortex and the ventral part of the dorsal cortex.The length of Pth from the rostral to the caudal end was(912.67?110.96)?m(n=10),the cubage of Pth was about(0.1430?0.0414)?m~3(n=10).2.The Pth could be divided into four segments,the anterior,the middle,the posterior and the terminal segments from the rostral to the caudal end.In the posterior segment,its dorsoventral axis was the longest,and could be divided into two parts: the dorsal and the ventral parts.The boundary of the two parts was clear.Conclusion The Pth is a long,narrow and flat structure;its rostrocaudal axis is longer than its dorsoventral axis,and its dorsal edge is smoother than its ventral edge.In the Pth,its caudal region is larger than its rostral region,and the posterior segment in the caudal region is divided into the dorsal and the ventral cell populations.