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1 carding all kinds of vaccines

As of March 2022, China has provided more than 2.1 billion doses of vaccine to more than 120 countries and international organizations, accounting for 1 billion of the total global vaccine use outside China.

1.1 inactivated vaccine

On December 31, 2020, the joint defense and control mechanism of the State Council announced that the new biological crown inactivated vaccine of China Pharmaceutical Group had been approved by the State Drug Administration to be listed conditionally.

1.2 inhaled COVID-19 vaccine

On November 12-14, 2021, the world's first inhalable COVID-19 vaccine was unveiled at the Fifth Hainan International Health Industry Expo. The world's first inhaled COVID-19 vaccine was developed by Academician Chen Wei of the military Medical Research Institute in cooperation with Kangxino Biology Co., Ltd. phase II clinical trials have achieved phased results and are promoting the application for emergency use. It is understood that the inhaled COVID-19 vaccine and intramuscular injection used the same vaccine, its preparation formula has not changed, only using different methods of administration. Aerosol inhalation immunity uses an atomizer to atomize the vaccine into tiny particles, which enter the respiratory tract and lungs through oral inhalation, thus stimulating mucosal immunity, which can not be brought about by intramuscular injection.

1.3 Plant protein technology vaccine

On February 24, 2022, Health Canada announced that the COVID-19 vaccine Covifenz, developed by the country's pharmaceutical company Medicago, could be used in adults between the ages of 18 and 64. This is the sixth COVID-19 vaccine approved by Canada, and it is also the first locally developed COVID-19 vaccine. Covifenz is the first COVID-19 vaccine to use plant protein technology.

1.4 Development of long-acting COVID-19 Vaccine by AI Technology

Japan's NEC announced on the 8th that it has begun to use state-of-the-art artificial intelligence (AI) technology to develop COVID-19 vaccine.

1.5 French Valneva COVID-19 vaccine

According to a government statement, the British Drug and Health products Administration (MHRA) approved the COVID-19 vaccine developed by French biotechnology company Valneva. The Valneva vaccine has become the sixth COVID-19 vaccine authorized by MHRA.

2 matlab Cod

% = Welcome to the official account: beauty of power systems and algorithms =% function spreadingBySir () A=load ('test.in');% node number N=size (Ad1);% infection probability irate=0.3;% recovery probability rrate=1;% initial node state table, initially only node 1 is infected, others are susceptible to infection start_node=1 BFSspreading is spread according to the principle of breadth first of the graph. End function BFSspreading (AMagneNSCHERTECHERE) end function BFSspreading)% queue head head=1;% queue tail, start queue empty, tail==headtail=1;% add infection source node queue (head) = start_node;% queue to expand head=head+1;% list of infected nodes infection=start_node % restore Node list recover= [];% vulnerable Node list for iRepllPart N% initially, start_node is infected if i==start_node%-1 means that the node has been removed from the list susceptible (I) =-1; end% initially, except start_node is infected, all nodes are in susceptible state susceptible (I) = I End% begins to propagate to neighboring nodes in breadth-first search order% to determine whether the queue is empty while tail~=head% fetch tail node i=queue (tail) % if the node is not in the removal list if isempty (find (recover==i,1)) for jig1v N% if node j is connected to the current node I and node j is not in the infection list if A (infection==j,1 j) = = 1 & & isempty (find (infection==j,1)) infection_random=rand (1) If infection_random < irate% New node is listed queue (head) = j;% extended queue head=head+1;% add new node j to infection list infection= [infection j] % remove the node from the list of vulnerable nodes and set it to-1 [row,col,v] = find (susceptible==j); susceptible (col) =-1; susceptible (find (susceptible==-1)) = [] End% add infected nodes to the recovery node list recover_random=rand (1); if infection_random < rrate% restore recover= [recover I]; remove [row,col,v] = find (infection==i) from the infection list Infection (col) =-1; infection (find (infection==-1)) = []; end tail=tail+1 End% end if isempty (find (recover==i,1) end% end while% respectively realize the status of the last node infectionsusceptiblerecoverend above is about "how to achieve novel coronavirus communication simulation effect by Matlab", I believe you all have a certain understanding. I hope the content shared by the editor will be helpful to you. If you want to know more about the relevant knowledge, please follow the industry information channel.

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