Tag: science & technology

Swine flu is caused by the H1N1 influenza virus strain. The H and N refer to hemagglutinin and neuraminidase proteins on the virus surface. The 2009 pandemic was caused by a novel H1N1 strain that was a reassortment of bird, swine, and human flu viruses. Options A and C have '!' instead of '1', and option D has incorrect hyphen placement.

Tamiflu (oseltamivir) is the antiviral medication used to treat swine flu in India and globally. It works by inhibiting the neuraminidase enzyme, preventing the virus from spreading in the body. It's most effective when taken within 48 hours of symptom onset. Options A, C, and D are misspelled versions.

Swine flu symptoms are indeed similar to regular seasonal flu symptoms. Both include fever, cough, sore throat, body aches, headache, chills, and fatigue. The main difference is that swine flu can cause more severe respiratory complications in some cases. This similarity makes diagnosis difficult without laboratory testing.

The 2009 swine flu pandemic was first detected in Mexico, specifically in the state of Veracruz in early 2009. The virus then quickly spread to the United States and globally. While the earliest confirmed cases were in Mexico, genetic analysis suggests the virus may have been circulating undetected beforehand. Note: 'Singpore' in option C is misspelled.

Basil (Tulsi in Hindi) leaves are traditionally used in India as a home remedy to prevent swine flu. Many people consume tulsi leaf paste or tea daily during outbreaks, believing it boosts immunity. However, scientific evidence for its effectiveness against H1N1 is limited, and it should complement, not replace, medical advice and vaccination. Option A is misspelled.

Covering your nose and mouth when sneezing or coughing prevents respiratory droplets from spreading through the air and infecting others. While washing hands is also crucial for hygiene, the immediate action done during the sneeze or cough itself is covering the mouth and nose.

H1N1 influenza can spread through contact with contaminated surfaces called fomites. When virus particles on objects are transferred to your mouth, nose, or eyes after touching a contaminated surface, infection can occur. The claim that transmission occurs only through direct human-to-human contact is incorrect.

Alcohol-based hand sanitizers typically containing 60% ethanol or isopropanol effectively inactivate influenza viruses by disrupting the viral envelope. They are recommended when soap and water are not available, though handwashing with soap is still preferred when possible.

Young healthy adults without chronic conditions generally have stronger immune systems and lower risk of severe H1N1 complications. The other groups listed - pregnant women, young children, seniors, and those with chronic medical conditions - are all recognized as high-risk populations for influenza complications.

Influenza viruses including H1N1 can be transmitted during the presymptomatic phase - infected individuals can shed virus and infect others 1 to 2 days before symptoms appear. This makes containment difficult and contributes to rapid spread in communities.