reporter: covid cases are now climbing in 30 states. next week, the city of philadelphia will join a growing list of college campuses br bringing back mask mandates. i think it s more important that we stay healthy and safe. reporter: and with infections climbing, tonight, there is more evidence out of israel that a second booster reduced covid symptoms, hospitalizations, and depths in people over 60. over 50 in this country can get a second booster shot, but the cdc only recommends it for people with underlying conditions and everyone over 65. dr. anthony fauci going a step further, saying he thinks everyone authorized for a second booster should get one. i recommend you go and get the shot if you re over 50. recommending that new booster. in the meantime, eva, just before we came on tonight, we re learning about two more subvariants of omicron, they re looking at in central new york? reporter: that s right, david. health officials say two newly identified subvariants of b
Dr. jha tonight standing by to answer your questions. and abc s victor oquendo leading us off now from florida. reporter: tonight, the covid crisis is exploding across the south. from florida to louisiana to texas, hospitals are putting up surge tents, bringing in extra ventilators and running out of beds and staff. when you overrun us and you wear us down and we get to where we can t come to work anymore, there s not going to be anybody here to take care of you. reporter: with 68,000 covid patients straining american hospitals, experts warn the system in affected communities is nearing the breaking point. if this pace continues for the next four or five days, which it seems it will, the hospital systems in florida and louisiana will collapse. reporter: and with covid infections climbing, another move to mandate vaccines. the pentagon today announcing it will seek the president s approval to require nearly 1.4 million active duty military members to get the vaccine, starting
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