As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.iruses. Viruses are even smaller than bacteria and require living hosts â such as people, plants or animals â to multiply. Otherwise, they can't survive. When a virus enters your body, it invades some of your cells and takes over the cell machinery, redirecting it to produce the virus.
Some seizures may place temporary but severe stress on the body and cause problems with the muscles, lungs, or heart. Choking, an abnormal heartbeat, or other problems may cause sudden death, though this is rare. Untreated seizures that become more severe or frequent may lead to these problems.
Complex focal seizures: These usually happen in the part of your brain that controls emotion and memory. You may lose consciousness but still look like youâre awake, or you may do things like gag, smack your lips, laugh, or cry. It may take several minutes for someone whoâs having a complex focal seizure to come out of it. Secondary generalized seizures: These start in one part of your brain and spread to the nerve cells on both sides. They can cause some of the same physical symptoms as a generalized seizure, like convulsions or muscle slackness.