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the virus which enter the respiratory system that causes a serious illness​

Sagot :

Answer:

COVID-19

Explanation:

because covid-19 is a virus

The answer is:

RSV Virus

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What is RSV?

Respiratory Syncytial Virus (RSV) Infection

Respiratory syncytial virus, or RSV, is a common respiratory virus that usually causes mild, cold-like symptoms. Most people recover in a week or two, but RSV can be serious, especially for infants and older adults.

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Other viruses that infect via respiratory system?

  • Asthma.
  • COPD.
  • Cystic Fibrosis.
  • Lung Cancer.
  • Tuberculosis.
  • Bronchitis.
  • Pneumonia.
  • Emphysema.
  • Covid-19.

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                         Hope it helps!

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