COVID vaccine: Variants that beat jabs 'will appear' says expert
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The UK has ordered 30 million doses of the Janssen vaccine, which uses similar technology to the Oxford jab. It has just been announced that the single dose vaccine has just been approved. What are the side effects to be aware of?
In an ongoing clinical trial, the Janssen COVID‑19 Vaccine has been shown to prevent COVID‑19 following a single dose. The duration of protection against COVID‑19 is currently unknown.
According to the US Food and Drug Administration, the most commonly reported side effects were pain at the injection site, headache, fatigue, muscle aches and nausea.
“Most of these side effects occurred within one to two days following vaccination and were mild to moderate in severity and lasted one to two days.
Janssen listed the symptoms of an allergic reaction to the vaccine which include:
- Difficulty breathing
- Swelling of your face and throat
- A fast heartbeat
- A bad rash all over your body
- Dizziness and weakness
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Blood clots
Janssen said on their site: “Blood clots involving blood vessels in the brain, abdomen, and legs, along with low levels of platelets (blood cells that help your body stop bleeding), have occurred in some people who have received the Janssen COVID-19 Vaccine.
“In people who developed these blood clots and low levels of platelets, symptoms began approximately one to two weeks following vaccination.
“Most people who developed these blood clots and low levels of platelets were females ages 18 through 49 years.”
Results from a clinical trial involving people in the United States, South Africa and Latin American countries found that COVID-19 Vaccine Janssen was effective at preventing COVID-19 in people from 18 years of age.
The study involved over 44,000 people with half of the patients receiving a single dose of the vaccine and half were given placebo.
People did not know if they had been given COVID-19 Vaccine Janssen or placebo.
The trial found a 67 percent reduction in the number of symptomatic COVID-19 cases after two weeks in people who received COVID-19 Vaccine Janssen (116 cases out of 19,630 people) compared with people given placebo (348 of 19,691 people).
Meaning the vaccine efficacy was at 67 percent.
The health secretary, Matt Hancock, welcomed the news. He said: “This is a further boost to the UK’s hugely successful vaccination programme, which has already saved over 13,000 lives, and means that we now have four safe and effective vaccines approved to help protect people from this awful virus.
“As Janssen is a single-dose vaccine, it will play an important role in the months to come as we redouble our efforts to encourage everyone to get their jabs and potentially begin a booster programme later this year.”
Adverse effects of COVID-19 vaccines should only last for a few days.
If they last longer, it’s imperative you must contact a doctor immediately.
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