THE KEY TO EPIDEMIC PREVENTION AND CONTROL MEASURES LIES IN SCIENTIFIC PRECISION, AND THE EFFECTIVENESS DEPENDS ON SCIENTIFIC PRECISION. IN RECENT DAYS, VARIOUS REGIONS AND DEPARTMENTS HAVE CARRIED OUT PREVENTION AND CONTROL WORK ACCORDING TO LOCAL CONDITIONS, SCIENTIFICALLY AND ACCURATELY. FOR EXAMPLE, IMPLEMENTING TARGETED NUCLEIC ACID TESTING EXEMPTIONS FOR CERTAIN GROUPS BASED ON ACTUAL CONDITIONS; INCORPORATE THE IMPLEMENTATION OF PREVENTION AND CONTROL MEASURES INTO REGULAR SUPERVISION; WE HAVE ISSUED 15 OPTIMIZATION MEASURES FOR THE TRANSPORTATION INDUSTRY, AND MADE SPECIFIC ARRANGEMENTS IN PASSENGER AND FREIGHT TRANSPORTATION, EVACUATION OF STRANDED PERSONNEL, AND SMOOTH LOGISTICS. THESE EFFORTS ARE ALL AIMED AT SEIZING THE INITIATIVE IN THE FIGHT AGAINST THE EPIDEMIC, CONTROLLING THE EPIDEMIC IN THE SHORTEST POSSIBLE TIME AT A LOWER COST, AND MINIMIZING THE IMPACT OF THE EPIDEMIC ON ECONOMIC AND SOCIAL DEVELOPMENT AND PEOPLE'S PRODUCTION AND LIFE.IT HAS BEEN NEARLY THREE YEARS SINCE THE OUTBREAK OF THE EPIDEMIC, AND IN THE FACE OF CONSTANTLY MUTATING STRAINS, IT IS OUR INEVITABLE CHOICE TO PERSIST IN PREVENTION AND CONTROL, RESEARCH, SUMMARIZATION, AND ADJUSTMENT AT THE SAME TIME, WHICH IS ALSO AN IMPORTANT EXPERIENCE PROVEN EFFECTIVE IN PRACTICE. CHINA HAS CONSTANTLY ADAPTED TO THE NEW CHARACTERISTICS OF COVID-19 VARIATION AND THE NEW SITUATION OF EPIDEMIC PREVENTION AND CONTROL, OPTIMIZED AND ADJUSTED THE PREVENTION AND CONTROL MEASURES ACCORDING TO THE TIME AND SITUATION, AND CONSTANTLY IMPROVED THE SCIENTIFIC AND ACCURATE PREVENTION AND CONTROL LEVEL. FOUR TECHNICAL DOCUMENTS, FROM THE NINTH VERSION OF THE PREVENTION AND CONTROL PLAN, TO THE TWENTY OPTIMIZATION MEASURES, TO THE IMPLEMENTATION MEASURES FOR THE PREVENTION AND CONTROL OF COVID-19 NUCLEIC ACID TESTING, WERE FORMULATED ACCORDING TO THE EVOLUTION TREND OF THE VIRUS AND THE IMPROVEMENT AND ENHANCEMENT OF CHINA'S PREVENTION AND CONTROL ABILITY. THEY NOT ONLY CLEARLY PROPOSED SCIENTIFIC EPIDEMIC MANAGEMENT, BUT ALSO PROVIDED CORRESPONDING GUIDANCE ON HOW TO RESPOND QUICKLY, HOW TO FIGHT THE EPIDEMIC WITH STRENGTH AND TEMPERATURE. THEY EMPHASIZED SCIENTIFIC PREVENTION AND CONTROL, PRECISE PREVENTION AND CONTROL, HIGHLIGHTED THE PROBLEM ORIENTATION AND EFFECT ORIENTATION, AND ENSURED THAT CHINA'S COVID-19 SEVERITY RATE AND MORTALITY RATE REMAINED AT A LOW LEVEL.REALIZING SCIENTIFIC PRECISION CARRIES HIGHER WORK REQUIREMENTS. ON THE ONE HAND, IT EMPHASIZES THE IMPORTANCE OF USING SPEED TO CONTROL SPEED, STRICTLY IMPLEMENTING THE "FOUR EARLY" REQUIREMENTS, CUTTING OFF THE SOURCE OF INFECTION AS QUICKLY AS POSSIBLE, AND CONTROLLING THE SCOPE OF THE EPIDEMIC; ON THE OTHER HAND, WE SHOULD HIGHLIGHT THE "TIMELINESS AND EFFECTIVENESS" OF PREVENTION AND CONTROL MEASURES, STRENGTHEN ANALYSIS AND JUDGMENT, TIMELY UPDATE THE DELINEATION AND CONTROL OF RISK AREAS ACCORDING TO CHANGES IN THE EPIDEMIC, LIFT THE LOCKDOWN OF AREAS THAT MEET THE CONDITIONS FOR LIFTING THE LOCKDOWN AS SOON AS POSSIBLE, RESTORE SOCIAL ORDER IN AN ORDERLY MANNER, AND TRULY MANAGE WHAT NEEDS TO BE MANAGED, IMPLEMENT WHAT NEEDS TO BE IMPLEMENTED, AND RESOLUTELY CANCEL WHAT NEEDS TO BE CANCELLED.TO ACHIEVE SCIENTIFIC PRECISION, WE MUST BE WILLING TO PUT IN EMBROIDERY EFFORTS, SORT OUT LINKS TO MAKE UP FOR SHORTCOMINGS, REFINE CONTINGENCY PLANS, STRICTLY IMPLEMENT THEM, AND IMPROVE PROCESSES TO CONTROL RESPONSIBILITIES. WE NEED TO BE DILIGENT, USE OUR EMOTIONS, AND MAKE EVERY EFFORT TO DO A GOOD JOB IN EPIDEMIC PREVENTION AND CONTROL, WHICH TESTS THE RESPONSIBILITY AND COMMITMENT OF LEADERS AT ALL LEVELS. RECENTLY, THERE HAVE BEEN MANY COMPLAINTS FROM THE PUBLIC ABOUT THE SIMPLIFICATION, LAYERED ESCALATION, AND ONE SIZE FITS ALL APPROACH OF PREVENTION AND CONTROL MEASURES IN SOME PLACES, WHICH IS PRECISELY A PROBLEM WITH RESPONSIBILITY. THIS REQUIRES RESOLUTELY CONSOLIDATING THE "FOUR PARTY RESPONSIBILITY", PROMOTING LEADERS AT ALL LEVELS, ESPECIALLY THE TOP LEADERS OF THE PARTY AND GOVERNMENT, TO GO DEEP INTO THE GRASSROOTS AND FRONTLINE, SCIENTIFICALLY AND ACCURATELY PROMOTE OPTIMIZED MEASURES FOR EPIDEMIC PREVENTION AND CONTROL, AND RESOLUTELY BLOCK THE "LEAKAGE" IN IMPLEMENTING MEASURES.THE BATTLE AGAINST THE EPIDEMIC IS STILL ONGOING. AT THIS MOMENT, IT IS PARTICULARLY IMPORTANT TO GATHER CONSENSUS, UNITE AS ONE, START FROM A SCIENTIFIC UNDERSTANDING OF THE VIRUS, IMPROVE THE EFFECTIVENESS OF EPIDEMIC PREVENTION CAPABILITIES, AND QUICKLY CURB THE SPREAD OF THE EPIDEMIC. IN THE FUTURE, WITH THE CONTINUOUS CHANGES IN THE DOMESTIC AND INTERNATIONAL EPIDEMIC SITUATION, FURTHER ADJUSTMENT AND OPTIMIZATION MEASURES WILL KEEP UP IN A TIMELY MANNER, BUT SCIENTIFIC PRECISION IS ALWAYS AN UNCHANGED REQUIREMENT. THE FUNDAMENTAL DIRECTION IS TO PROTECT PEOPLE'S LIVES AND HEALTH TO A CERTAIN EXTENT AND MINIMIZE THE IMPACT OF THE EPIDEMIC ON ECONOMIC AND SOCIAL DEVELOPMENT.