Everything You Should Know About Influenza A Subtype H3N2 Virus

 What is H3N2 Virus? How does it affect humans?

Every year in India and other countries, there are recurrent respiratory illnesses that display flu-like symptoms. Although there exist four types of influenza virus (A, B, C, and D), types A and B are responsible for these seasonal respiratory illnesses. Influenza A virus has a subtype called H3N2, which was initially discovered in 1968 and has been evolving ever since. It is likely the fastest evolving strain of influenza viruses, and due to its antigenic changes and severe symptoms, including pulmonary complications, it tends to become epidemic.

H3N2 Virus- Infection, Symptoms, Treatment, and Vaccines

Spread and infection of H3N2

According to the IMA, the duration of the infection is typically 5-7 days for most individuals. The fever usually subsides within 3 days. However, a persistent cough may persist for three weeks or more, which is a long-lasting symptom. Individuals under 15 years and over 50 years of age are at a higher risk of contracting the infection. Those with pre-existing health conditions or immunocompromised individuals may experience severe illness due to the infection.

The virus is transmitted through infected droplets, which can spread from an infected person to others through direct contact or contaminated surfaces. Infected individuals tend to release droplets when they cough or sneeze, leading to transmission. It is advisable to take necessary precautions to prevent infection.

H3N2 virus spread in India: Should you worry?

There has been an increase in the occurrences of H3N2 virus infections in our country, with several states reporting a higher than usual number of cases. The Central and State governments are implementing necessary measures to contain the spread of the infection, and medical experts anticipate a decline in cases in the near future. It is crucial to adhere to the guidelines provided and seek medical attention as needed, while refraining from self-medicating.

Influenza A Virus Subtype H3N2 Symptoms

The symptoms generally resemble those of seasonal Influenza. 

The symptoms can include:

?     Chills and fever

?     Sore throat

?     Runny nose or congested nose, sneezing

?     Headache

?     Fatigue

?     Cough that may last long

?     Body aches

?     Nausea, uneasiness, and vomiting

?     Diarrhoea

Treatment of H3N2

The IMA and government authorities have recommended that individuals should refrain from panicking and self-medicating. Antibiotics should only be used as per the advice of a consulting physician. In most cases, symptomatic treatment can effectively alleviate symptoms and reduce the duration of the illness.

Follow these measures for a rapid recovery

?     Take rest and avoid stress

?     Drink plenty of fluids

?     Eat simple meals which are easy to digest and nourishing. Avoid spicy and fried foods

?     Take steam for chest congestion

?     Saline water gargles can be used to find relief from sore throat

?     Avoid foods with too much sugar and sodium

?     You can take the recommended dose of paracetamol to bring down the fever

How can the H3N2 virus be prevented from spreading?

• Taking preventative measures is crucial and can be effectively implemented by yourself.
• To maintain hand hygiene, either wash your hands regularly with soap and water or use a hand sanitizer.
• Refrain from touching your face and nose as it can increase the risk of infection.
• Steer clear of crowded places.
• Wear a mask when you're out or near someone who appears to be unwell.
• Stay hydrated by drinking plenty of water and follow a healthy diet that includes fruits, vegetables, protein, and healthy fats.
• Do not spit in public or open areas.
• Avoid close contact like hugging or shaking hands.
• If you have pre-existing health conditions, seek advice from your doctor for additional or modified preventative measures. Read more.