At present, COVID 19 is the name of terrifying disease worldwide. It is infectious and many peoples become infected every day as well as embrace death. So, there is no doubt that the world is facing a pandemic situation while medical treatment is not 100% effective.


On 30th December, one step had taken for monitoring this emerging disease have found without unknown cause in Wuhan, China. Since that time, world scientists have made remarkable progress to disclose the real causative factors of severe acute respiratory syndrome Coronavirus 2 (SARS Cov-2). Its outlook, patterns, transmission system, lifetime duration, pathogenesis, how to mitigate, behavior with vaccines, and other sides. They are also trying to know how Covid 19 scatters are critical for informing global strategies to mitigate the risk of future outbreaks.



Unfortunately, it is investigated that pattern of the Covid 19 virus is not the same everywhere. It can change its mechanism, severity, which is a great barrier to find out what is actually effective medicine to be safe. Presently Indian Delta variant causes the most number of death than all other patterns in India and then in Bangladesh. India has officially recorded more than 414,000 Covid 19 deaths so far.



As this virus is contagious, it can spread primarily through droplets of saliva or discharge from the nose while an infected person coughs or snoozes. It also can survive on metals for more or less 9 days. So, hand touching on here and there is also could be the main cause. However, it also reveals that this virus can move through the air which is totally horrifying.



The main symptoms of this disease are fever, cough, vomiting, loss of taste or smell, muscle or body aches, headache, sore throat, congestion or runny nose, diarrhea. But as this virus changes its patterns as these symptoms change more or less. According to the survey, adult peoples are comparatively more infected rather than other aged people. People who have severe underlying medical conditions like heart or lung disease or diabetics seem to be at higher risk for building up more severe complications from Covid 19. Furthermore, it is good to know about some warnings signs which indicate patients death risk allow him or her into hospital or medical care. Such as the inability to wake or stay awake, pale grey, or blue-colored skin, lips, depending on skin tone, persistent pain or pressure in the chest, trouble breathing. If someone shows these signs, please admit him or her in emergency medical care condition.



Now turn to protection. Some measurements which are compulsory to obey be safe when someone knows his or her society is already Infected by Covid 19. These are some simple precautions such as physical distancing, wearing a mask, keeping rooms well ventilated, avoiding crows, cleaning hands, and coughing into a bent allow or tissue. You also can get more recommendations from different sources. At this moment, having a vaccine is unavoidable. As we have already invented a vaccine for Covid 19 but the number of it is not sufficient compared with the global population. But day by day people is going to under vaccination which is good news undoubtedly. Through some peoples disagree to take the vaccine. Such as without vaccine, earning remittance or going abroad is not possible and they also can't do other activities in the ensuing future.