Poxviruses are virulent infectious diseases caused by smallpox viruses, the cause of which is, in general, a viral infection. Poxviridae (pox viruses) are a group of larger, more complex DNA viruses, brick-shaped or oval, with a size of (200 nm to 90 nm) × (100 nm to 260 nm), and are among the largest viruses in size, even barely visible under a light microscope. The pox virus replicates in the cytoplasm of the cell, forming eosinophilic inclusion bodies. Infected individuals develop papules on the skin after the onset of the disease, which then transform into blisters and pustules. Dietary precautions 1, high energy, high protein diet The patient’s appetite is reduced and the absorption function is reduced resulting in insufficient energy intake, at the same time, the body’s metabolic rate is increased, making energy imbalance. 2, eat more fresh vegetables and fruits It is better to eat more fresh vegetables and fruits to enhance the resistance to diseases. In particular, you should eat more fresh vegetables and fruits rich in vitamin A, carotene and vitamin C, as well as foods containing vitamin E. 3, small number of meals, regular meals The patient’s digestive ability will also be reduced during illness, so it is necessary to eat fewer meals, regular meals, and more easily digestible food.