class 9 u like paper question a person is suffering from chills nasal discharge in sneezing fever with cough inclination of respiratory system are the symptoms associated with bacterial or viral infection mention mode of transmission and strategies and for its prevention and control
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cover the discharging of bacterial places such as nose and mouth.In some cases the infection may spread by using the infected person's things
cover the discharging of bacterial places such as nose and mouth.In some cases the infection may spread by using the infected person's things
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