Questions tagged [vaccine]

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What's the immunity or vaccine rate against monkeypox? [closed]

One heard about the news of the monkeypox. Though the smallpox vaccine was highly effective against the monkeypox, most of the population after 1970s were not vaccinated against either of them. The ...
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1 vote
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What makes it hard to develop vaccines for Syphilis and Gonorrhea?

Hope my question is more specific than Why are some viruses harder to make vaccines for? Both Syphilis and Gonorrhea are caused by bacterial infection, rather than virus like HIV or COVID, which ...
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Why are some vaccines 100% effective while others aren’t?

Why are some vaccines, like for rabies, 100% effective at treating someone while others, like the covid 19 vaccine, isn’t. Disclaimer: not a dumb vaccine skeptic or anything just genuinely curious.
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Is there any general consensus in the research on what the maximum duration is that the mRNA vaccine spike remains in the body?

Is there any general consensus in the research on what the maximum duration is that the mRNA vaccine spike remains in the body? I thought I read some time ago from CDC but could be mistaken that at ...
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1 answer
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Why did we get the MRNA-Vaccines for COVID before the "traditional" vaccines with inactivated coronavirus-components?

i was wondering what the reasons, were, why got the MRNA-Vaccine faster, than the "traditionally" produced vaccines with inactivated viruscomponents. What were there reasons behind that?
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6 votes
1 answer
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Why do some vaccines have only a short protection span?

Why does the rabies vaccine have only a limited longevity of around 2 years (source: immunize.org), while the hepatitis b vaccine has a longevity of more than 25 years (source: CDC)? In addition, if ...
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5 votes
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Why *exactly* are mRNA covid vaccines delivered intramuscularly?

I would like to understand what exact processes make intramuscular injection of particularly mRNA covid vaccines the best delivery option. I've asked doctors and googled, but I get contradictory ...
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-3 votes
1 answer
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Are vaccines much more deadly than people (and scientists) think?

In the response to the question Are Covid-19 vaccines much more deadly than people (and scientists) think? is mentioned that "Docs are instructed not to report deaths after a flu vaccine that are ...
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2 votes
1 answer
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Why is aspiration not commonly used for IM vaccine administration in the U.S.?

The CDC says it is "not necessary". I asked my local pharmacy and they will not do it even upon request and I am OK with that. But I have a question. By accident I happened to see a video ...
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10 votes
2 answers
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Are Covid-19 vaccines much more deadly than people (and scientists) think?

The other day I read this chart on an Italian newspaper article I looked for the source, and I found only this tweet: https://twitter.com/Drs4CovidEthics/status/1432193260949172230 from Doctors for ...
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4 votes
1 answer
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Did the NIH study find Moderna - Moderna gave more antibodies than Moderna-Pfizer?

An NIH study studied the efficacy of different combinations of Covid-19 vaccines in terms of the level of antibodies produced. Dr. Rob Swanda tweeted out a chart summarizing the results: So it seems ...
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How can the J&J vaccine shot be effective against COVID-19 if it only has a ~60% efficacy rate?

According to the CDC's page on the safety of J&J vaccines, the reported efficacy rate of the vaccine is a staggeringly low 66.3%. That said, the government is still promoting and touting the J&...
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Covid vaccine second dose side effects and immunity

Does experiencing side effects such as fever/headache/muscle ache after the second dose of vaccine mean that immune system is weak and catching covid would have been more dangerous in comparison to ...
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1 answer
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What is the recommended interval for HPV vaccines such as Gardasil 9 for women and men up to age 45?

In October 2018, the US Food and Drug Administration announced it had expanded the approved age for the HPV vaccine up to age 45 for women and men. In June 2019, a key advisory committee for the US ...
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-1 votes
1 answer
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How does Pfizer vaccine affect covid test?

Medical question on possible outcomes of tests. Assuming patient does NOT have actual covid. Perfectly Healthy A patient gets a Pfizer vaccine first dose today. Will the patient’s Covid nose swab ...
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-4 votes
1 answer
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What is the authoritative US document that delineates concrete standards for vaccine approval?

What is the authoritative US document that delineates concrete standards for vaccine approval? Presumably said document would be from the FDA. By concrete, this should include all measurable ...
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1 vote
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Mix-&-Match of 3 COVID-19 Vaccines?

Now that getting the third shot of COVID-19 vaccine is allowed, which one of the following order of 3 vaccines will lead to better protection and more robust immune system response against Covid-19 ...
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1 vote
3 answers
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Are viral loads in vaccinated people only infectious with the delta variant? If so, why not with previous COVID-19 variants?

I'm reading on https://sfist.com/2021/07/27/cdc-confirms-that-viral-loads-in-vaccinated-people-with-delta-are-indistinguishable-from-unvaccinated/ (mirror): CDC Confirms That Viral Loads In ...
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1 vote
3 answers
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Why are mRNA vaccines not yet available against other diseases?

The mRNA vaccines against developing COVID-19 are obviously the first approved mRNA vaccines. We are probably at the beginning of an mRNA vaccine evolution. I've recently read a very interesting ...
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(How) does taking all available vaccines contribute to cross- and trained immunity?

Many countries have national vaccination campaigns that consists of vaccines against several different diseases. I expect that the choice of vaccines that are included in such programs is mainly ...
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If you've already been infected with SARS-CoV-2, do the vaccines cause fewer side effects?

Assuming that I had Covid-19 not so long ago. My body should have produced some type of antibodies to defend against the infection*. If I now get one of the vaccines, would it be more likely that ...
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0 votes
1 answer
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A recent Israeli study found the Pfizer COVID-19 vaccine to have only 64% efficacy against the Delta strain - is that with full vaccination?

The numbers from Israel (https://www.bloomberg.com/news/articles/2021-07-05/israel-sees-decline-in-pfizer-vaccine-efficacy-rate-ynet-says) indicate the Pfizer vaccine is quickly losing efficacy ...
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10 votes
1 answer
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Can the HPV vaccine be effective if you are already infected? [closed]

I was just wondering about this subject, when I did a blood exam today and I picked a paper about available vaccines and I saw a vaccine against HPV, the same my mom always bothered me to take it. I'm ...
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