The major concern for the healthcare practitioners and public health experts are the asymptomatic COVID-19 infections . A recent estimates reveals about 45 percent of all coronavirus patients are asymptomatic. The asymptomatic cases spreads the virus as much as symptomatic patients. Though cannot be differentiated with symptoms, asymptomatic and symptomatic clinical characters differs. 

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The American Society for Microbiology's research says the immune response of the asymptomatic people is slightly different as compared to those with symptomatic infection. The research was carried with 25 asymptomatic and 27 symptomatic COVID-19 patients in Wuhan, China. The results reveals same viral load, asymptomatic cured earlier than symptomatic, asymtomatic with less than 9 day stay in hospital and symptomatic stayed for 26 days, asymptomatic has less IgM antibody levels, aymptomatic possess high lymphocyte, basophils, eosinophils levels, no significant difference in cytokine levels.

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However, the study is limited to very small size of the samples, dynamic immunological changes were not noted, lot more changes in immune response is not known. The survey results can't be taken as such. It is important to stay safe. The study will be widened with tracing and testing all possible cases. Maintain the COVID-19 protocols social distancing, mask usage, sanitizing often to protect teh public form the infection. 

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