How effective is the Janssen COVID-19 vaccine?

A single dose of Janssen Ad26.COV2.S was found in clinical trials to have an efficacy of 66.9% against symptomatic moderate and severe SARS-CoV-2 infection.

What is the percentage of people who need to be immune against COVID-19 in order to achieve herd immunity?

See full answerWe are still learning about immunity to COVID-19. Most people who are infected with COVID-19 develop an immune response within the first few weeks, but we don’t know how strong or lasting that immune response is, or how it differs for different people. There have also been reports of people infected with COVID-19 for a second time. Until we better understand COVID-19 immunity, it will not be possible to know how much of a population is immune and how long that immunity last for, let alone make future predictions. These challenges should preclude any plans that try to increase immunity within a population by allowing people to get infected.

Who should be vaccinated first for COVID-19?

All Member States have access to COVID-19 vaccines at the same time on the basis of the size of their population.Most countries have defined priority groups and are further refining who should get priority in these priority groups e.g. older person over 80 years of age. The ECDC published an overview of where EU/EEA countries and the UK are with the development of their vaccination plans/strategies. ECDC is also working on a modelling exercise on prioritisation to support Member States.

How old do you have to be to get the Astrazeneca vaccine?

The vaccine is not recommended for persons younger than 18 years of age pending the results of further studies.

What are the organs most affected by COVID‐19?

The lungs are the organs most affected by COVID‐19

Can I get COVID-19 from eating fresh food?

There is currently no evidence that people can catch COVID-19 from food, including fruits and vegetables. Fresh fruits and vegetables are part of a healthy diet and their consumption should be encouraged.

Are smokers more likely to develop severe disease with COVID-19?

Tobacco smoking is a known risk factor for many respiratory infections and increases the severity of respiratory diseases. A review of studies by public health experts convened by WHO on 29 April 2020 found that smokers are more likely to develop severe disease with COVID-19, compared to non-smokers.