स्पर्शोन्मुख संक्रमण? क्या मुझे सैंपलिंग स्वैब टेस्ट कराने की जरूरत है? Symptomatic infection and asymptomatic infection are two sides of the same coin. If there are many asymptomatic infections in the country, there will be many symptomatic infections at the same time. There are currently no confirmed cases in Shanghai, so I backtrack that there is no asymptomatic infection in …