SARS is a respiratory infection which is caused by X' whereas bird flu is caused by Here x and Yare, respectively
1.H5N1 virus and retro virus
2.H5N1 virus and RNA virus
3.Retra virus and H5N1 virus
4.DNA virus and retro virus,
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The cause of death was noted as acute respiratory failure, ... bird flu and SARS epidemic, he assisted while wearing his ...✌️✌️✌️☺️☺️
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