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Why do children have less severe COVID-19 than adults?

Biology/Immunity Families/Kids Vaccines

A: A better innate immune response may explain milder COVID-19 disease in kids, but they still CAN and DO get infected and transmit SARS-CoV-2, especially the more transmissible Delta variant. 👉🏽 TL;DR. Children have fewer ACE2 receptors, a more robust innate immune system, and produce more anti-viral proteins (like type 1 interferons) than adults. These

Is immunity from natural COVID infection “better” than vaccine immunity?

Biology/Immunity Vaccines

A: No. Getting vaccinated is by far the safest way to develop immunity to SARS-CoV-2. If you’ve already been infected, getting vaccinated still provides you with the best protection-in fact likely *better* than either previous infection or the vaccine alone. A recent study from Israel created waves with findings that people with previous COVID-19 infection

How and why do viruses mutate?

Biology/Immunity Vaccines

Q: What does this mean for future SARS-CoV-2 variants? A: After infection, the virus makes lots of copies of itself in the body which can lead to random changes (like typos) in the virus’ genetic code (mutations). While most mutations give no advantage to the virus, with enough chances for mutations, sometimes the virus hits

Will the COVID-19 vaccines encourage the emergence of new variants or immune evasion?

Biology/Immunity Vaccines

A: No. Vaccines REDUCE opportunities for viral replication needed for variants to emerge. ➡️ TL;DR: The virus has more opportunity to replicate in unvaccinated populations, creating a FAR bigger risk for the development of SARS-CoV-2 mutations. Even so, the good news is that the emergence of variants that fully evade vaccine induced immunity is considered

How does natural immunity to SARS-CoV-2 infection differ from immunity generated by COVID-19 vaccines?

Biology/Immunity Vaccines

A. COVID-19 vaccines induce higher levels and a broader range of neutralizing antibodies to the receptor binding domain (RBD) of the spike protein than does natural infection. Vaccine-induced antibodies are less likely to be affected by changes in the RBD seen in the current SARS-CoV-2 variants, and are therefore more likely to be more effective

¿Qué es la terapia genética?

Biology/Immunity Posts en Español Vaccines

P: ÂżQuĂ© es la terapia genĂ©tica ? ÂżEn quĂ© se diferencia de las vacunas? R: Las terapias genĂ©ticas tratan enfermedades utilizando herramientas genĂ©ticas. Las vacunas no cambian su ADN. Por lo general, las terapias genĂ©ticas funcionan al realizar cambios duraderos en su ADN – el “libro de recetas” genĂ©tico que prevea las instrucciones para crearlo

Why might Delta be more transmissible?


A: In the words of virologist Dr. Angela Rasmussen, “people infected with Delta are shedding a s**t-ton more virus than with earlier variants.” A newly released study has provided some clues to Delta’s transmissibility tricks by testing viral loads in quarantined close contacts of confirmed cases. Contacts were tested daily by PCR, and the course

WHO announces new names for SARS-CoV-2 variants


Let’s face it: B.1.1.7 and B.1.351 don’t easily roll off the tongue. While naming variants after the place they were first identified is common in virology, during the pandemic there has been concern about stigmatizing particular countries when using these names in public discussions. The WHO has adopted a new Greek alphabet naming system to