For the malaria parasite to reach the blood of its human host, it must first enter the liver, where only a small number of parasites differentiate and replicate for upwards of seven days, making it a bottleneck in the parasite’s lifecycle. This bottleneck makes the liver stage an optimal target for effective and long-lasting vaccines against the disease. Using Spatial Transcriptomics and single-cell RNA-sequencing technologies, researchers at Stockholm University have for the first time managed to create a spatio-temporal map of malaria infection in the mouse liver. A study that was recently published in Nature Communications.