influenza or common cold spreads faster and is difficult to control why
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Influenza and common coldare both communicable viral infections which are spreadthrough aerosols, physical contact, touching contaminated surfaces, etc. Therefore the infectionspreads very easily from an infected person to a healthy person and disease develops at a very fast rate.
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tuberculosis is carried in airborne particles, called droplet nuclei, of 1– 5 microns in diameter. Infectious droplet nuclei are generated when persons who have pulmonary or laryngealTB disease cough, sneeze, shout, or sing. TB is spreadfrom person to person through the air.
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Why do female mosquito need highly nutrition food in the form of human blood
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Only female mosquitoes takeblood. They use the protein and iron found in blood tomake their eggs. Femalesfeed on nectar and water, just like males do.
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Influenza or common cold spreads faster and is difficult to control because:
- Common colds are communicable diseases. The basic symptoms of the common cold are sore throat, runny nose, coughing, sneezes, headaches, etc.
- Most people recover from the common cold within a week. But people with weak immune systems may develop serious health issues.
- The virus of influenza spread very quickly through the air and personal contact.
- The problem of the common cold can be avoided by following certain awareness of washing and sanitizing hands, staying away from sick people, etc.
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