The CDC has stated that a significant portion of individuals who lack symptoms (“asymptomatic”) and that even those who eventually develop symptoms (“pre-symptomatic”) can transmit the virus to others before showing symptoms. 
This means that people who are interacting in close proximity—for example, speaking, coughing, or sneezing can get sick—even if those people are not exhibiting symptoms.  
In light of this new evidence, CDC recommends wearing cloth face coverings in public settings where other social distancing measures are difficult to maintain (e.g., grocery stores and pharmacies) especially in areas of significant community-based transmission. To read more click here
1. Maintain social distancing
2. Wash your hands for at least 20 seconds with soap
3. Avoid touching your face
5. Stay home if you can