retailer and club. >> building a better bay area, moving forward, finding solutions, this is abc7news. anchor: thanks for joining us, i am kristen sze, it is friday and you are watching getting answers, we ask experts your questions to get answers to you in real time. sanncra f attorney goes on the offensive. talked at length with our media partner the san franscdcio anstda.'s editor-in-f wi be joining us live. today is the city of san fro'scci 'nbis april 15 172 years ago. we will look at the history and find ways to celebrate. a travel blogger will share some

ideas. major news, the cdc authorizes the first ever breath tt for covid. the data giving hope to kids under five and the ba2 marching across the country even as we prepare to celebrate holidays this weekend. here is abc's special correspondent. happy friday to you. >> happy friday to you and happy birthday to our beautiful city. anchor: it does not look a day over 171. one way to celebrate is learning. if you are watching on facebook life -- live, help us solve this question >> tell us which one is not true. the federal transportation mask mandate was extended and is now

said to expire on march 3 -- may 3, or is it the breathalyzer contest in a few minutes but is only 7% accurate or is it that kids showed a modest -- kristen: dr. patel, viewers, tell me what you think it is. i know a to be true. between b and c, i am going to say c is the light because i think you played around with the age limit. osmond says a. >> the light is b. according to the trial put forward by the company was 90% accurate. a is true, mask mandate is in

place until may 3 unless he gets further extended. this is pfizer's early data, it was not the biggest trial but the result showed a great increase in antibody's, but there is a lot of questions in their data and i'm sure parents will want to know more. kristen: you got us all today. nobody picked b. >> it was too easy so i had to tie one up. kristen: let's talk more about the breath test, this is the first in terms of anything relating to a breath test. what is it measuring? >> is using something essentially called gas spectroscopy. it is able to detect the same particles that would give you a signal for the coronavirus and it can give you results in three minutes. the important thing here aside

from the fact that it is not a pcr tests going up your nose, in an early study it was able to accurately detect 91% of cases that were positive and correctly identify 99% of negative cases, so that is good sensitivity and specificity. the important thing to understand is that this is a test that would have to be done in a clinic, in a place with a health professional or mobile clinic, but three minutes is kind of great. the fda says if there is a positive test you should confirm that with pcr. it could work wonders in terms of mass screening. kristen: let's talk a little more about the one that i stumbled on, the pfizer data with regard to the booster shot for kids 5 to 11.

we talked about improvement in terms of antibodies. does that mean improvement in defense against covid and does that strongly suggest kids in that age group should get when it is there to -- their time. >> you are brilliant, a lot of people looking at this press release, it is not peer-reviewed data. the pfizer press release said they had a six times increase in antibodies and in a sub analysis up to 8:36 increase against omic ron. you cannot jump to that and say this as a direct connection to vaccine efficacy or durability. some proponents of the booster says it does wonderful in an older population. i think this will be a long conversation for federal regulators to have before they

go out and recommend this. we know in this population there are a lot more questions, or hesitancy. only 20% of this age group has gotten their vaccines. kristen: as you know in the last 24 hours the california department of public health announced they are pushing back the vaccine deadline for california school kids as a school entry requirement. what does that suggest to and is that a good idea? second anchor: -- >> i am going to be candid, it strikes me as a worry that there might be some political pushback. vaccine mandates are nothing new in terms of what kids need to go through k-12, but this is been so polarized i could see there are some lawmakers that are hesitant. i think it is too early to say if this is going to be something detrimental because we have not seen hospitalization rise but i

worry what would happen if cases continue to increase, and it is something we will be closely monitoring. we have 20% of that age group, 30 million kids vaccinated so it will probably not be a very popular option if that would happen. kristen: they pushed it back to summer of next year. you mentioned variants. the ba2 has taken over, and no we are hearing there are several new subvariants that evolve from that. how worrisome is this? >> the concept is in general worrisome. it can become more transmissive. the two subvariants were found in new york. all data suggests ba2 is more transmissible than omicron.

it translates into a lot more cases, unfortunately as of right now we are not seeing a correlated increase in hospitalizations, and there is no data to suggest this is more virulent than omicron, but we cannot say for sure what is going to happen in the next two or three weeks. this does not mean we can completely ignore case numbers. it just means in two weeks we will know more. kristen: i want to get to carole's question. she wants to know, i got the j&j with a moderna booster. what second booster should i get? >> i would be sticking with the mrna booster, or if you have any doubts at all talked away professional. what booster is available to you is the best to get. kristen: want to go back to that

idea that more cases could be coming. this weekend we have the holidays, easter, ramadan, passover. what do you think people need to keep in mind? what is the safe thing to do. >> the same rules generally apply, we are just in a much safer place. i cannot believe this is our third easter in a pandemic. we are in a much better place in terms of vaccines and immunity. if you live with someone who is high risk and you were planning on gathering it is perfectly reasonable to ask people if they are vaccinated or asking people to get tested. we have access to these home rapid tests. i was symptomatic two weeks ago. i rapid tested myself because people around you deserve to know if you are symptomatic or positive. i am dressed very festive for

the weekend. kristen: our graphics are blocking the money. happy easter. >> likewise. kristen: our media partner at the san francisco standard spent 15 minutes grilling the district

kristen: welcome back. with his recall election less than two months away the san francisco district attorney stepping up his campaign to stay in office despite criticism of his approach to prosecuting crime. public safety is one of the pillars of building a better bay area and abc 7 and our media partner san francisco standard devote a lot of attention to the

issue. yesterday the editor-in-chief sat down with him for a long conversation, and jonathan is here now to share highlights from that interview. thanks for your time today. >> thank you. kristen: i was sure interview with him. you tell me, but i sensed a shift in tone from playing defense to playing offense. do you think so? >> he was certainly very combative and he was very forceful in his main points about it being a republican funded recall as he calls it. he was quite forceful in making the points he wants to make. kristen: and i think that being forceful and playing offense was shown in this exchange. >> the folks behind this recall are racist, anti-immigrant,

anti-chinese and is high time people come out and put their mouth whether money is. i want san francisco to hear his vision for public safety. does it include locking kids engages, does that include the death penalty? let's hear from him. kristen: unpack that for us. who is he talking about, bankrolling the recall, and explain his saying that they are anti-chinese because you definitely see a vocal group of chinese-americans very opposed to him as well. >> one of the tricks when you were running in a recall is you are running against no one. it is a difficult spot to be in, because people do not see the

alternative, so i think what he is trying to do is create a sense of what is the alternative policy to what he is doing and in the references to racism in such he is really referring to the kind of trump republican ideology, which is kind of racist frankly, and we have said trump has taken over the party and that ideology is there. there are a of very wealthy people led by this one individual who have contributed a lot of money, and the recall would not be happening without that money. so if you feel strongly that people who are giving the money need to stand up and say what they stand for, and that has not happened. kristen: other than just him trying to cast doubt on who is funding this, you guys talked about wide range ot -- of topics

about whether kids diversion instead of jail approach for the majority of crimes might be working. tell me what your takeaway is on those key issues. >> my broad takeaway about those issues even aside from this interview, these are very tough issues that have gone on for a long time. from my own point of view i do not think he gave great answers necessarily to what he thinks should be done there, but i think it is also the case is not just up to him, as he pointed out. these are multifaceted problems in many different city agencies need to be involved. i do not think he was very persuasive that these problems

are under control, which is i think what people want to see. kristen: she did shifting attention back to police. did he admit to mistakes or regrets in the ways that he prosecuted that led people to have this perception and this recall to be happening? >> he did acknowledge lessons learned, and that is one of the things i was trying to get out in the interview. the world has changed a lot since he was elected, and some of the views that people had on things like crime are different than they were a few years ago. i was trying to get at is polly she -- he is policy -- his p olicy shifting, and i did not see anything too dramatic. kristen: you would want to know

would he do things the same way, this approach or would there be someone of a shift, and you are not noticing much of a shift. >> i will say, if i could add, i do think it is the case that he has done what he said he was going to do so it is a question of the electorate shifting. if he were to be recalled that would not reflect him doing something other than what he said he was going to do. kristen: if he is recalled who would be likely to replace him until the next regular election? is there a sense it would be someone very different? >> i am not very informed in terms of who might be named to the position if he were recalled, but we could be sure that it would be a more traditional prosecutor with a

more law outlook. kristen: what do recent polls say about his chances? >> this poll indicates he is going to lose badly, but i am really sure that actually originated with the recall campaign. i am not sure that was an accurate poll. i do not think we have a good sense of public opinion on this. the school board recall was overwhelmingly for recall and people assume the d8 recall will have similar dynamics but i personally do not think that will be the case. kristen: jonathan weber, thank you for sharing your extensive interview. i do hope folks will check it out because we just summarized. thanks for looking into the

crystal ball for me. we are all wondering. appreciate your insight always. we do have links to the san francisco standard's other reporting, abc 7.com, and to watch more segments, check out our abc 7 bay area streaming app. happy 415 day.

kristen: happy birthday to you. happy birthday to you. happy birthday, dear san francisco. happy birthday to you. the city by the bay turns 172 years old today, or perhaps on a different day. confused? do not be. joining us now is a travel blogger to explain and offer ways to celebrate. nice to see you. >> how are you doing?

kristen: i am doing great. there are two days associated with the birth of san francisco. today, april 15, is one of them. what happened on april 15 172 years ago? >> california, san francisco -- how did san francisco become incorporated as a city? kristen: i never thought about it. the area code 415, is that how our area code came to be? >> the people in 1815 definitely did that on purpose. kristen: what is the other birthday at the city celebrates, it is in june, right? >> june 29, 1776. i have a map come you can see in

the reflection, north america in 1776, california. they made up what it might look like. june 29, 1776 is when spanish colonizers came here. it is important to remember we are on the ancestral homeland of people and they have not ceded that so give them props absolut. >> 1776, spanish colonizers came. some people say that was the founding day. party birthdays. kristen: why not, if we go by that, 1776 and the city is 245

years old and it looks fabulous. what are some ways to celebrate? >> a few years ago there was a huge celebration in 2016. to bring awareness to education happening, there was a celebration. people are doing some celebrating, although it is odd that the pandemic. there is a bunch going on this weekend that is not necessarily part of it but it is part of our many traditions. there is a great big wheel race that happens on sunday. kristen: that is a lot going on. what are other cool events happening? we haveasve e

iss e first timeor thers tha they ha bn able to celebrate in this way. what are cool things? >> i was not prepared ahead, i just thought i was document history. i have not been able to do passover, what are you doing tonight? kristen: i am probably going to watch the latest episode of pachinko. i do not know if you were watching that series, it is fantastic. there is a social media component to the 415 component. is there a way to show your love for the city using a hashtag? >> once again i was not prepared for this. 415 day has been around, show

your love for the city. kristen: totally not my intention to stump you. this is very fascinating history, and thanks for sharing that with us, and also great ways to celebrate san francisco's birthday. thank you so much, good to see you.

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that on abc7news. we will be here in tonight, the new threat from vladimir putin about u.s. military aid to ukraine. and on this weekend when easter, passover, and ramadan converge, new clashes in the holy land. the pentagon now saying it was ukrainian missiles that struck and sank russia's massive warship. now the counterattack on a missile factory near kyiv. and moscow's official warning to the u.s. against arming ukraine, threatening, quote, unpredictable consequences. inside that terrifying new york subway attack. the city now honoring those transit workers who raced in to save lives. and tonight, new details about the suspect's moves, from the moment right after that attack, to his arrest on an east village street. millions traveling this holiday weekend. long lines and anxious waits at the airports