If you are worried about the indirect contact brought about by the delivery, you can let the delivery boy put it at the door, and then take it into the house after he left (both parties are not in direct contact with each other, which is relatively safe), and then rub the outer packaging with alcohol, wash your hands and then open it to consume it, which will also reduce the risk. As for express delivery, different viruses have different survival times outside the human body, and viruses contaminated during delivery may have died long ago. However, viruses contaminated during recent delivery and distribution may still be alive, and the risk can be reduced by wiping the package with alcohol directly after receipt. To prevent new coronavirus infections, the following measures should be taken to properly disinfect the home: Open windows for a period of time every day to enhance air circulation, which can effectively prevent respiratory infections. Wash your hands frequently, scrub with soap and water for more than 40 seconds, and pay attention to cover your mouth and nose with a tissue or elbow when sneezing or coughing, and it is not advisable to cover your mouth and nose directly with both hands. The surface of the desktop and other objects are cleaned well every day and sterilized regularly. After a guest visits, timely disinfection of indoor related object surfaces, you can choose legal and effective disinfectant or disinfectant wipes wipe disinfection. How to carry out preventive disinfection at home The new coronavirus is afraid of heat, and the virus can be killed in 30 minutes at 56℃; chlorine-containing disinfectants, alcohol, iodine-based disinfectants, hydrogen peroxide disinfectants and other disinfectants can also kill the virus. For skin disinfection, 75% alcohol and povidone-iodine can be used (for mucous membrane disinfection, povidone-iodine or other mucous membrane disinfectants should be used); ensure air circulation and open windows for a period of time every day to enhance air circulation, which can effectively prevent respiratory infectious diseases. Thoroughly clean the home environment at least once a week. To disinfect the home environment, use chlorine-containing disinfectants (e.g. 84 disinfectant, bleach or other chlorine-containing disinfectant powder/tempered tablets) prepared into a solution with an effective chlorine concentration of 250-500mg/L to disinfect the area by wiping or soaking; when the surface of objects or the ground is contaminated by respiratory secretions, vomit or excreta, use a disposable wipe with strong absorbent power to remove the visible dirt, and then use appropriate disinfectant to disinfect the contaminated area and its vicinity; heat-resistant and heat-resistant, the disinfectant is also effective in preventing respiratory infections. The contaminated area and its vicinity should be cleaned and disinfected with appropriate disinfectant; heat-resistant items can be disinfected by boiling for 15 minutes. How to disinfect after suspicious symptoms appear in the family When a family member develops suspicious symptoms (including fever, cough, sore throat, chest tightness, dyspnea, mild nausea, fatigue, poor mental health, nausea and vomiting, diarrhea, headache, conjunctivitis, mild pain in the limbs, or muscle pains in the lower back, etc.), the other members of the family should be isolated and protected, and should be sent to a doctor in a timely manner according to the progress of the disease, and the use of public transportation to go to the hospital should be avoided. Public transportation should be avoided when going to the clinic. After a symptomatic family member has been seen, the room in which he/she is isolated and the items he/she comes into contact with (e.g., floor of the living room, bathroom, household countertops, door knobs, cutlery, cups, towels, etc.) should be disinfected. How to disinfect the home when a patient with novel coronavirus infection is present in the home After the patient leaves (e.g., is hospitalized, dies, is released from isolation, etc.), final disinfection should be performed. Objects for final disinfection in the patient’s home include: living room floors, walls, bathrooms, door knobs, tables, chairs and other household countertops, as well as the patient’s tableware, cups, clothing, bedding and other household items, toys and so on. Terminal disinfection is usually done by professionals, contact your local CDC for details. Other family members are close contacts and should be under medical observation for 14 days. Source: Guangdong Science and Technology Publishing House Protection against New Coronavirus Infections Beijing CDC Authoritative Interpretation of Prevention of New Coronavirus