Don’t Miss Out on the Latest Updates.
Subscribe to Our Newsletter Today!
-
- ENG
COVID-19 Cases In India: After battling COVID-19 for over four years, just as the world was beginning to return to a sense of normalcy, a fresh wave of concern has emerged. COVID-19 cases are once again on the rise globally, with Southeast Asia facing a more serious outbreak. Countries like Singapore and Hong Kong have been placed on high alert amid the sudden surge.
The resurgence has triggered fresh anxiety among people, many of whom are still haunted by the trauma of previous waves. Even the thought of a similar situation unfolding again is enough to send a chill down the spine.
Unlike the previous, the world this time would be more prepared, counting on experiences from the past, the learnings lead us to the front in dealing with another possible pandemic. The right awareness is the key to cracking the ordeal, and vaccines are indeed a boon to mankind during these uncertain times. Here are the few vaccines that have proven themselves as a shield against the COVID-19 infection and some that are still relevant to protect you from the latest variants.
An mRNA vaccine is known to use a copy of messenger RNA (mRNA) to teach the body how to recognise and ward off a specific virus or bacteria. mRNA vaccines work by sending a specific set of instructions to the body's cells. The mRNA vaccine contains instructions for how to make the very vital "S protein," which is a key protein found on the surface of the COVID-19 virus. Post the vaccination, the body's muscle cells start creating the protein pieces and pushing them onto the cell surfaces. This helps the body to create antibodies, which are known to clear the COVID-19 virus.
The various mRNA vaccines available for Covid 19 are Pfizer-BioNTech and Moderna vaccines, both with updated formulas. These vaccines are approved for use in individuals 6 months and older whereas the FDA has approved and authorized updated mRNA COVID-19 vaccines, including Comirnaty and Spikevax, for individuals 12 years of age and older.
The vector vaccine like the Johnson & Johnson vaccine, helps by using an amended version of a different virus (the viral vector) that helps deliver instructions to cells to produce parts of the COVID-19 virus the parts of which are displayed on the cell surfaces, triggering an immune response making the virus familiar to the immune system.
Janssen Jcovden (Johnson & Johnson) COVID-19 vaccine and AstraZeneca Vaxzevria COVID-19 vaccine are viral vector-based vaccines that are known to inhibit the growth of the COVID-19 infection.
Protein Subunit Vaccines
This type of vaccine helps by having a harmless S protein in it, once the immune system becomes familiar with it, it produces antibodies and defensive blood cells that stop the growth of the virus later.
The known protein subvariant vaccine is the Novavax COVID-19 it uses only parts of the virus (specifically, the harmless S protein).
JN.1 is the latest virus variant that is dominant in Asia and causing a sudden spike in numbers currently. It is known to be rooted in the Omicron BA.2.86 lineage, and was discovered in August 2023. Its increased transmissibility, particularly in cold, dry climates, is concerning. The variant was designated as a Variant of Interest by the WHO in December 2023. It is known to contain roughly 30 mutations intended to evade immunity, more than any other variant available at the time. According to a medical source, the JN.1 variant has evolved now and has mutated to spread more effectively.
While looking for the possible options for vaccines, it is assumed that the updated bivalent and monovalent mRNA ones, still provide a shield against severe illness, hospitalisation, and death due to JN.1. The researchers are a never-ending task of finding a new vaccine that works well with the new variants.
Follow TheHealthSite.com for all the latest health news and developments from around the world.