As of December 2020, there are over 200 vaccine candidates for COVID-19 being developed. Of these, at least 52 candidate vaccines are in human trials.
The best COVID-19 vaccine is the first one that is available to you. Do not wait for a specific brand. All currently authorized and recommended COVID-19 vaccines are safe, are effective, and reduce your risk of severe illness.
The AstraZeneca Vaccine
COVID-19 Vaccine AstraZeneca is a vaccine used to protect people aged 18 years and older.
COVID-19 Vaccine AstraZeneca stimulates the body’s natural defences (immune system). It causes the body to produce its own protection (antibodies) against the virus.
This will help to protect you against COVID-19 in the future. None of the ingredients in this vaccine can cause COVID-19.
How Efficacious is the Vaccine?
The EU medicines agency (EMA), EMA has thoroughly assessed the data on the quality, safety and efficacy of the vaccine and has recommended granting a conditional marketing authorisation for people aged 18 and above. The AZD1222 vaccine against COVID-19 has an efficacy of 63.09% against symptomatic SARS-CoV-2 infection. Longer dose intervals within the 8 to 12 weeks range are associated with greater vaccine efficacy.
Does the Vaccine Prevent Infection & Transmission?
There is no substantive data available related to impact of ADZ1222 on transmission or viral shedding. In the meantime, we must maintain and strengthen public health measures that work, namely, masking, physical distancing handwashing, respiratory and cough hygiene, avoiding crowds and ensuring good ventilation. As of 19 April 2021, the AstraZeneca vaccine is safe and effective at protecting people from the extremely serious risks of COVID-19, including death, hospitalization and severe disease (WHO, 2021).
Concerns about the AstraZeneca Vaccine
The EU medicines agency (EMA) has said clotting should be listed as a rare vaccine side effect. After a study looking at 86 such cases in the EU, the EMA concluded the benefits of the vaccine outweighed the risk and that there was no definite causal link.
Warning and Precautions
Tell your doctor, pharmacist, or nurse before you get vaccinated if:
- You have ever had a severe allergic reaction (anaphylaxis) after any other vaccine injection.
- You currently have a severe infection with a high temperature (over 38°C).
However, a mild fever or infection, like a cold, are not reasons to delay vaccination.