The vaccine Janssen , US firm Johnson & Johnson , will, except surprises, the fourth authorized in the European Union after Pfizer-BionTech, Modern and Oxford-AstraZeneca. The highlight is that it is the first in the world that only requires one dose . When will it arrive in Spain? What is its effectiveness? What are its side effects? We will try to answer these questions below.
Where it is?
From the USA. It has been produced by the pharmaceutical company Janssen , one of the subsidiaries of the multinational Johnson & Johnson . The United States approved it for use and is already vaccinating the population over 18 years of age with this injectable.
What characteristics does it have?
The main one is that it is single-dose . It is the first vaccine in the world that only requires a prick to give immunity against the coronavirus. Another of its advantages is that it does not require great conservation conditions.
According to the technical data sheet of the vaccine, the Janssen doses can be transported at -20ºC, but they can also be stored for several weeks at refrigerator temperature (between 2ºC and 8ºC) and up to two hours at room temperature .
Like those from AstraZeneca and Oxford, Janssen’s vaccine is also based on an inactivated virus (adenovirus), which is used as a ‘Trojan horse’ to introduce tiny fragments of coronavirus genetic material into the body to generate a response. immune.
What is its effectiveness?
According to large-scale clinical trials, the Janssen vaccine would be 66% effective in preventing mild symptomatic infections and 85% in preventing severe forms of the disease . Studies to date, however, show that the efficacy of the vaccine could be compromised by the spread of emerging variants . Tests in South Africa, where a more infectious mutation circulates, lowered the level of efficacy by up to 57%.
Does it have side effects?
According to the US health authorities , the most common side effects are pain, redness or swelling in the arm where the puncture is received. It can also cause tiredness, headache, muscle pain, chills, fever, and nausea; usual symptoms, on the other hand, in the set of vaccines.
These side effects usually appear within a day or two after being vaccinated and disappear within a few days. In general, the side effects of inoculation have been found to be milder and more moderate. In the tests carried out there were no severe allergic reactions .
How much does it cost?
The pharmaceutical company announced that its vaccine would be marketed at a “maximum price” of 8.4 euros per dose . That is, below the threshold of 10 dollars. The final price of the compound, however, remains unknown since, as has happened with the other pharmaceutical companies, the details of the contract remain unpublished.
When will it arrive in Spain?
Once cleared by the EU, the first deliveries, estimated at 4.8 million injections, are expected to arrive in April . The European Commission reached an agreement with the company to supply 21 million doses throughout this year. However, in recent days, the multinational confessed to being “in trouble” due to production problems .