All of them, they are all very important factors to test for the identifying
I believe its true
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Answer: The virus weakens as time passes.
Explanation: The virus will weaken continuously during transmission, and will reduce its toxicity after several generations of transmission, without causing much harm to the human body.
Answer:
Major organs involved in the digestive system include the mouth, stomach, small intestine, large ... When it reaches your stomach, a sphincter opens and dumps the food in. ... To move into the small intestine, chyme must pass through the pyloric sphincter. From here it enters the duodenum, the first part of the small intestine.
Explanation:
The virus life cycle could be divided into six steps: attachment, penetration, uncoating, gene expression and replication, assembly, and release.