Which of the following viruses causes Swine Flu?

The correct answer is H1N1 Virus.

Key Points

• Swine flu is caused by the H1N1 influenza virus, which primarily affects pigs but can also infect humans.
• The H1N1 virus is a subtype of the Influenza A virus, which is known for causing seasonal flu outbreaks.
• In 2009, the H1N1 virus caused a global pandemic, which was declared by the World Health Organization (WHO).
• Symptoms of swine flu are similar to seasonal flu, including fever, cough, sore throat, body aches, and fatigue.
• Vaccines and antiviral medications, such as oseltamivir (Tamiflu), are commonly used to prevent and treat H1N1 infections.

Additional Information

• Influenza Virus Classification
  • Influenza viruses are classified into three main types: A, B, and C.
  • Type A influenza viruses, such as H1N1, are responsible for most flu pandemics and can infect humans, birds, and other animals.
  • Type B influenza viruses primarily infect humans and cause seasonal outbreaks.
  • Type C influenza viruses cause mild respiratory symptoms and are less common.
• 2009 H1N1 Pandemic (Swine Flu)
  • The 2009 H1N1 pandemic originated in Mexico and spread rapidly worldwide.
  • The WHO declared the pandemic on June 11, 2009, and officially declared its end on August 10, 2010.
  • The H1N1 virus was a unique combination of genes from human, swine, and avian influenza viruses.
  • Global vaccination efforts and antiviral treatments helped control the pandemic.
• Preventive Measures
  • Regular handwashing and maintaining respiratory hygiene are key to preventing the spread of H1N1.
  • Vaccination against seasonal flu, which includes protection against H1N1, is highly recommended.
  • Individuals experiencing flu-like symptoms should avoid close contact with others to reduce transmission.
• Symptoms and Risk Factors
  • Common symptoms of H1N1 infection include fever, cough, sore throat, runny nose, and muscle pain.
  • Severe cases may lead to pneumonia, respiratory failure, or death, especially in high-risk groups.
  • High-risk groups include young children, elderly individuals, pregnant women, and those with chronic health conditions.