Vaccinia viruses are therapeutic tools with different biomedical applications depending on the susceptibility characteristics. For example, the strain called MVA (modified vaccinia Ankara), which is unable to replicate in mammalian cells, triggers a potent immune system response and is used to develop vaccines against COVID-19 or AIDS.
Babies with multilingual mothers process sound differently in their brains and are more sensitive to a wider range of pitches, according to a study published in Frontiers in Human Neuroscience.
In human populations, it is relatively easy to calculate demographic trends and make projections for the future if data on basic processes such as births and immigration is known. The data, given by individuals, can also include death and emigration, which subtract.
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