Severe illness after vaccination

Hospitalisation among vaccine breakthrough COVID-19 infections

Robust vaccine efficacies at preventing severe symptomatic disease

Breakthrough SARS-CoV-2 infections in fully vaccinated

Impact of vaccination on admission to hospital

Patients with confirmed SARS-CoV-2 infection

Yale New Haven Health System, Connecticut

Between March 23 and July 1, 2021

Patients were considered fully vaccinated 14 days after second dose

969 patients were admitted PCR positive

172 (18%) of 969 patients had received at least one vaccine dose

103 had received a partial vaccine course

15 had received a complete course

54 were fully vaccinated

Among the 54

25 (46%) patients were asymptomatic

4 (7%) had mild disease

11 (20%) had moderate disease

14 (26%) had severe or critical illness

4 (7%) required ICU

1 required ventilation

3 died

Among those with severe or critical illness

Median age 80·5 years

Pre-existing comorbidities in the 14 patients with severe or critical illness

Body–mass index more than 25 kg/m² (n=9)

Cardiovascular disease (n=12)

Lung disease (n=7)

Malignancy (n=4)

Type 2 diabetes (n=7)

Immunosuppressive agent (n=4)

Difference between vaccines

13 of 14 patients had received BNT162b2, Pfizer

1 of the 14 had received mRNA-1273, Moderna

0 of the 14 had received Ad.26. COV2.S, J and J

May 17, 2021, vaccine doses in Connecticut

Pfizer, 1, 358, 175

Moderna, 1, 044, 420

J and J, 267, 000

Written by Dr. John Campbell

Hello Everyone,My name is John Campbell and I am a retired Nurse Teacher and A and E nurse based in England. I also do some teaching in Asia and Africa when time permits. These videos are to help students to learn the background to all forms of health care. My PhD focused on the development of open learning resources for nurses nationally and internationally.


Leave a Reply
  1. I had my second Pfizer shot and the CVS pharmacist said oops well I have to jab you a second time I hit a vein. A second job was fine when he aspirated he found no blood.
    I am so glad the pharmacist aspirated my shot

  2. I have now had covid 3 times, once pre vaccines, and twice after receiving both AZ vaccines, i do not have any underlying health issues in fact i am a very fit 58 yr old of average weight, non drinker, non smoker, nope no booster for me thank you very much.

  3. Omg! Get on with his story man!!! Les have mercy, the annoying microphone noise makes this 10x worse! He could have said this is less than 1/3 the time! WHY did you let him rattle on like this??

  4. Problem is they consider you unanimated of you had the vaccine right away but it hasn't been 14 days yet. So if you had an immediate reaction too the vaccine your unvaccinated according to them. This corrupts the data.

  5. When you needed a vaccination, you always went to your doctors surgery and either a doctor or nurse would give it to you, but queuing up outside a tent in a field and having volunteers with no medical knowledge administering these C19 jabs just doesn't seem right and as a result set off massive alarm bells for me. They are just death camps. No jabs for me thank you.

  6. Going by the sheer incompetence which saturates the entire NHS, I'm actually more scared of getting severely unwell and reliant on their care as I am of getting sick and dying.

  7. I was vaccinated 2 times (first, then second dose of Pfizer vaccine – 28 days interval between doses)

    After 25 days about the second dose I had strong stress at work. After 2 days I started to feel difficulty breathing.

    Only after 28 days during the diagnostic procedure "CT low dose lung with contrast-established pulmonary embolism, fortunately minimal,

    but I still had trouble breathing. I am now on anticoagulant therapy (Xarelto) for 6 months. Question: Can I or should I not be vaccinated with a booster dose after 6 months of 2 doses (Pfizer vaccine)

    Honestly, I'm scared.


  8. Im just buzzing out because I know absolutely nobody with adverse reactions from the vaccine. Pfizer and in mid twenties. Is there anyone else here like me here? I guess a lot of people like me dont comment and if you happen to have an adverse reaction you're more likely to comment a shit load on stuff like this. I also guess social media makes things seem bigger than they are when a handful of people go around and upvote their stories. Still though, im being straight up when I say I know nobody with adverse reactions, so its got me out here looking at the comments trying to discern who is a bot, lol. Oh and to anyone replying trying to argue, save your time. Im not replying. Just wanted to add my contrarian 2 cents for a bit of nuance. love yas!

Leave a Reply

Your email address will not be published. Required fields are marked *