the other issues for 580 around springtown.ved to the shoulder, caused the quick traffic break. slowing at the bay bridge may get worse. i think there's something going on at embarcadero getting off at the bay bridge westbound. back to you. >> thanks mike. >>> google now taking additional steps to ensure user privacy for its ad tracking technology. earlier this week it agreed phase out third-party cooks for its chrome browsers which enabled targeted ads we see. it's promising not to develop alternative ways to track you as you surf. >>> new this morning take a look at this video of a spacex rocket exploding after landing during a first time flight test. it happened yesterday in texas. spacex tested a high altitude unmanned rocket flight before returning to land on a concrete pad. the cause of the explosion unclear. >>> 6:39. off the rails literally. next on "today in the bay," the damage in southern california. this is after a train derailment. the latest on the investigation. >> what went wrong. >>> plus, which bay area city i

kathleen in springtown, texas. caller: hello. i do have a question.husband and i took our modernity shot in january. prior to taking our vaccine, we were both taking vitamin d and zinc. now that we have had the vaccine, should we continue taking the vitamin d and zinc? guest: well, that's up to you. i think that taking vitamin d and zinc, if it has not giving you any kind of side effects or problems, you know, it is not going to hurt things. but many people were taking vitamin d, because there was a speculation it would reduce the chances that you would get the virus or it would be severe if you got it. now that you have had your vaccination, and that is a good vaccine, so if you want to cut back on that, i think that they need to use other precautions and try other things -- the need to do other things is much less now that we have the vaccine. but i do urge caution that people are not too optimistic about the vaccine. we still need to be careful. but the big thing i would do is continue to be cautious about keeping distance from people, particularly