Cold winters, low ambient temperatures and humidity are good conditions for influenza viruses to grow and cause "seasonal flu" to humans. Children are susceptible to influenza infection due to weak young resistance ...

According to the World Health Organization (WHO), around one third of children worldwide are infected with influenza and children are also classified as having high mortality from influenza .

**The "local time" spread the virus**

Climate: In low humidity and low temperatures (cold, humid climate), it is easy to spread the flu.

Habitat: unoccupied, densely populated, polluted or damp environment is most likely to transmit influenza virus.

Crowded public transport: especially the distance between the sick and the unsafe (<1m) makes it easy to inhale droplets from patients, especially children.

**Flu is easy to confuse with the common cold**

Colds and flu are two completely different diseases, although the two diseases have similar symptoms. The difference is shown by the following three characteristics:

Different pathogens: colds are usually caused by some common viruses of the respiratory tract such as Adenovirus, Rhinovirus, Coronavirus .... The flu is caused by the influenza virus is scientific name Influenzae.

Different types of illnesses and clinical symptoms: Colds usually cause mild or moderate respiratory symptoms such as sneezing, runny nose, or stuffy nose, and some patients may have coughing. or body fatigue fleeting. In contrast, when infected with influenza symptoms often loudly manifested through three syndrome:

Infection: children often have high fever 39 - 400C when influenza infection, flushing, fast pulse, anorexia, small urine, dark yellow urine. Children often tired, tired of fever.

Soreness: Severe headache and constant high fever or stress, often more pain in the forehead and the area of ​​the eyeball. Patients also hurt the muscles of his body. Patients feel hot, painful area on the breastbone.

Respiratory distress syndrome: Appears early on with varying degrees of severity such as sneezing, nasal congestion, runny nose, red eyes, watery eyes, dizziness, dry feeling and sore throat. Children often have signs of nausea, vomiting or abdominal pain.

Different degrees of danger and complication: colds usually cure themselves and do not cause any serious complications for humans, whereas flu if not properly monitored and caring for the sick can cause Serious complications for humans.