Introduction

H3N2 influenza has recently seen a surge in cases in India, causing concern among health experts and the general public. This strain of influenza is not a new virus; in fact, it has been around for over 50 years and has caused global epidemics in the past. In this article, we will dive into the history, evolution, effects, symptoms, prevention, and treatment of H3N2 influenza.

History and Evolution

H3N2 is a subtype of the influenza A virus, which is a type of respiratory illness. The virus is constantly evolving, and new strains can emerge over time. The first reported case of H3N2 was in Hong Kong in 1968, and it quickly led to a global epidemic that killed around one million people worldwide. Since then, H3N2 has been a dominant strain during flu seasons, with a particularly severe outbreak in 2017/18.

Effects of the Virus

Like other strains of influenza, H3N2 can cause a range of symptoms, including fever, cough, sore throat, fatigue, body aches, and respiratory issues. However, H3N2 is known to have chronic effects on the kidneys, and those at a vulnerable age may experience acute failure of kidney functioning. Patients with pre-existing conditions such as diabetes, cardiac arrest, hypertension, and respiratory issues are also at a higher risk of severe complications. Influenza can also affect patients with dialysis and kidney transplant, making them weaker and more susceptible to bacterial pneumonia and multi-organ failure.

Symptoms

The symptoms of H3N2 influenza are similar to other strains of the flu. Patients may experience severe cold, high fever, cough, sore throat, fatigue, and body aches. Diarrhea, vomiting, dehydration, shortness of breath, and patched lips are also common symptoms. In severe cases, patients may experience chest pain and breathing difficulties, and it is crucial to seek medical attention immediately.

Prevention and Treatment

The best way to prevent the spread of H3N2 influenza is by maintaining proper sanitation and hygiene, such as washing your hands frequently, avoiding unhygienic places, and wearing a mask. Annual vaccination is highly recommended for individuals at a higher risk of severe complications, such as the elderly, young children, and patients with pre-existing conditions. The annual flu vaccine includes protection against three or four strains of flu, including H3N1, H3N2, and influenza B. If you do contract H3N2 influenza, it is important to rest and drink plenty of fluids to stay hydrated. Antiviral medication can also help alleviate the symptoms if started early.

Conclusion

H3N2 influenza is a highly contagious respiratory illness that can cause severe complications, especially in vulnerable populations. While it may not be as widespread or severe as COVID-19, it is still a cause for concern and should not be taken lightly. By following proper hygiene practices and getting vaccinated, we can help prevent the spread of H3N2 influenza and protect ourselves and our communities from this illness.