The risk of corona infection is lesser than 1 percent if the first and second doses of the Oxford-AstraZeneca vaccine are taken. A study done by Chittagong Veterinary and Animal Sciences University (CVASU) revealed such information.
In a press release issued last Thursday, CVASU officials said that a team of researchers led by CVASU Vice-Chancellor Prof Dr Gautam Buddha Das has been conducting research for 2 long months. The members of the research team are Prof Dr Sharmin Chowdhury, Dr Mohammad Khaled Mosharraf Hossain, Dr Iftekhar Ahmed Rana, Dr Trideep Das, Dr Pranesh Dutta, Dr Md Sirajul Islam, Dr Tanvir Ahmad Nizami.
In the study, they assessed the comparative health risks of Oxford-AstraZeneca vaccinated and unvaccinated Covid-19 patients in Chittagong and Chandpur regions.
A total of 22,936 samples were tested at the CVASU and Chandpur Covid-19 detection lab from April 22 to June 22, of which 2,137 (16.52 per cent) detected the presence of SARS-CoV-2 or Novel Corona virus in the body.
A total of 1,095 health-related data and data were included in the study through contact tracing among the Covid-19 positive individuals.
The study found that 968 of the infected patients did not receive the Covid-19 vaccine.
On the other hand, 63 people received only the first dose of the Oxford-AstraZeneca vaccine from the health center at different times and 64 people received both the first and second dose vaccines. The study found that covid-19 infection rates among first and seconddose vaccine recipients were 0.48 percent and 0.49 percent of total sample testing
The study found that 137 of the patients who did not receive the Covid-19 vaccine needed hospitalization, where 7 or 3 of the first and second dose vaccinators had to go to the hospital. Of the 83 patients who were not vaccinated at the hospital, respiratory distress was observed and 79 of them required additional oxygen support. Oxygen saturation levels were observed at least 70 percent in patients with asthma.
Oxygen saturation was found to be normal (96.7 percent) in vaccinated patients. Of the hospitalized patients who were not vaccinated, 7 needed ICU services, while the vaccinated patients did not need any ICU services. The duration of shortness of breath in unvaccinated patients has been extended to a maximum of 20 days.
The study found that a total of 10 people who had died of Covid-19 had not received the first or second dose of the vaccine. The study also found that corona infection rates were 76.7 percent among unvaccinated Covid-19 patients who were already suffering from various physical complications, compared to about 12 percent of those who received the vaccine.
CVASU researchers believe that the free vaccine provided by the Bangladesh government will reduce the risk of re-infection in vaccinators, as well as reduce the risk of death if someone is infected with Covid-19. Most of those who were not vaccinated and died at the hospital were over 50 years old. Therefore, coronary health and death risks will be greatly reduced if the country's senior citizens (senior citizens) are initially vaccinated.
