response. >> i'm very worried that transplant patients who are not aware of these results have a false sense of security. >> reporter: at johns hopkins medicine, they are studying the vaccine responses of immuno-surpressed patients. >> i expected it to be lower than immuno-competent people. but not this low. it's disappointing and a bit terrifying. >> reporter: after receiving a mrna vaccine, people with normal immune systems produce the antibodies against the virus that causes covid, but research finds after being fully vaccinated, half of transplant patients have no antibodies at all and he recommends that even those taking less powerful medication consider having the antibody level wills tested. >> it's not unreasonable to seek data in the form of a reliable antibody test that you discuss wi y ctor

>> reporter: that's because it's still not known how much protection covid-19 vaccines >> reporter: the medication mcma mcmanis takes, stops her immune system from attacking her own joints. >> my doctor keeps a close eye on me. so he the did an antibody test on me. >> reporter: what did it show? >> it shows i have no antibodies. >> reporter: what did you say too your husband? >> i'm going have to get the vaccine again. and his response was, well, you get a flu shot every year. >> reporter: she is getting a third vaccine doses to stimulate her immune response. the same strategy chosen by dr. montgomery. how many days after that shot did you check your antibodies? >> 13 days after the shot. >> reporter: what did it show? >> off the charts, antibody.

>> reporter: really? >> yeah. >> reporter: what would your advice be for the people out there on immuno-surpressive therapy? >> hang in there, don't start taking chances at this point until we know more. >> reporter: several of the doctor's vaccinated transplant patients had to be hospitalized after contracting covid-19, he said that he gets 100 e-mails a day from worried patients and that they should get vaccinated, he tells them and not get a third vaccine unless the doctor arranges it. >> as covid cases and hospital stays and deaths continue to fall here in the u.s., president biden has plans to share surplus vaccine with the rest of the world. he is promising to send is 80 million doses to hard hit countries like india and brazil. holly williams reports. >> reporter: president biden announced a u.s. will share a total of 80 million vaccine

doses with the rest of the rld. just asn worldar ii america was thers on t battl ag. >> reporter: and america has plenty to share. >> vaccine supply is out pacing demand. around the country, shots are sitting unused. >> reporter: it's order enough vaccines to vaccinate the population twice over and other countries are struggling to secure them. a all nighted nations program backed by the u.s. has so far delivered fewer than 70 million doses worldwide. when billions are needed. the world health organization said that we are at risk of vaccine apartheid and foreign policy expert ike fryman said that itlp. >> they can see in the headlines that america is taking off masks and getting back to normal life

and their grand that ma ust if other couries don't vaccinate, they could create morocco individual variants that are a danger to us all. >> it is a moral importance that we vaccinate the globe. not only to help other people but to protect us. >> reporter: but many nations are now turning to america's rivals. giving them an opportunity to win hearts and minds. while america's promised 80 million doses according to monitoring groups, china and russia have done deals to deliver 600 million vaccine doses each globally. though there are will quesquest effective they are. >> we are worried that they are not up to par.

grandma thinks she is protected and hugs a grandson and spreads the virus. and then that can cause variants that are resistant to the vaccines and spread across the globe. >> as it finishes vaccinating its own population, it will have hundreds of millions extra doses to export. >> reporter: you are saying the u.s. can turn it around? >> i think it can. feeling sluggish or weighed down? it could be a sign that your digestive system isn't working at it's best taking metamucil everyday can help. metamucil psyllium fiber, gels to trap and remove the waste that weighs you down. it also helps lower cholesterol and slows sugar absorption to promote healthy blood sugar levels. so you can feel lighter and more energetic metamucil. support your daily digestive health. and try metamucil fiber thins. a great tasting and easy way to start your day.

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after 17 years underground, a trillion noisy cicadas are now emerging from their long hibernation and as chip reid reports, there's little to fear from the screaming insects. >> if you want to hold them, you are welcome to, if not, that's fine. >> what is it about the cicada that bugs people? >> i don't want it, they are creepy. >> reporter: like it or not, here they come. we are going to have the collision of something like maybe 4 billion, maybe 10 billion, maybe a trillion tiny insects with 30 million human beings and this is the only place on planet earth, even in the universe that this happens. so, that's what makes it so special. >> reporter: mike has been waiting 17 years for the

emerging of the brood 10 cicadas in the eastern u.s., from new york to indiana, to georgia. you both get excited about this. these areheoolest boh. entimologists. ts one right t much cicada bling. >> reporter: even cicada cookies. more about that later. the last time that brood ten appeared was 17 years ago when people were logging to facebook for the first time. the movie "lord of the rings" won 11 oscars and no one was keeping up with the kardashians. the cicadas have been underground, living on tree sap and now, as the ground

temperature hits 64 degrees, they are making their way to the tree tops to mate. >> the cicadas mating song will loudly announce their arrival. it's going to be anywhere between 80 and 100decibles is, that's the sound of a lawnmower engine and a jet airplane going overhead . >> you compare the sound of cicadas to this? >> they will be louder than this. >> louder? >> chip, they will be louder than this. >> it's flying. >> that was great. >> reporter: last week, some lucky families got to visit with some of the first cicadas of 2021. >> i am the cicada lord. >> reporter: in a program in viinia. naturalist susan holland.

>> it's a good way to do start getting used to. they are going crawl out whether you like it to or not. >> reporter: she explained how they shed their skin and start climbing the trees or a conveniently located human. their goal is to reach the tree laeggs and then die.will mate, to weeks later, the eggs will hatch, the young will tumble to the ground and the whole 17 year cycle will start all over again. >> and it's just one of the most spectacular phenomenon of all of nature. they are not going to bite, scratch, sting or carry away small children like the flying monkeys in the wizard of oz. >> they are cute. they are adorable. >> for the next few weeks it will be a all you can eat high protein buffet. for everything from fish to

turtles from ants to possums. >> many dogs and cats will find them too tempting to resist, too, and yes, so will some humans. >> i don't know how they would enjoy it. >> i think a cicada would probably taste like a cricket, but a lot bigger. >> we decided to get in on the buzz. hello, professors, good to see you again. so, looks like a picnic, what is on the menu? >> just like grade school, it's 10:00, it's time to have milk and cookies. >> reporter: milk and cookies? >> choose your cicada cookies. save the cicada for last, just like an oreo, one, two, three. >> reporter: crunchy. >> very good. >> crunchy, sweet, delicious.

>> how about a toast, to cicada emergence. >>

finally this half hour, we will introduce you to a real life super mom. she has been a foster mother to dozens of babies over the decades. and as we see, she is not moving her cradle to the garage any time soon. >> lind a owens has opened her heart to the smallest in need. for 34 yea snt un >> mri or children, so for these babies to come in to my care, it's a rewarding, very rewarding, heart-warming thing to be able to have

sleepless nights. >> reporter: the 78-year-old has been given many names through the years. >> mama linda, miss linda or baby whispers now. >> reporter: do you remember all of the children that come in to your care? >> they all have a mark in your life. i have pictures from when i started, i have pictures in drawers and in boxes. >> reporter: some of them come pretty small. a number of them have a tough start. some newborns are developmentally delayed from being born on drugs. >> the reward is to see the smile, the eye contact. >> reporter: owens cares long after the babies leave her home. erica adopted a baby that she fostered 12 years ago and still remembers her advice. >> she is in her crib, and she is like leave her alone. i know you want to lay with her. if you wake her up, you will start interrupting her sleep time. >> reporter: you providing a safe and healthy environment for babies is allowing you to give

the gift of motherhood to other people, or parenthood, do you look at it that way? >> yes, i do. when they are matched with a family that is going to adopt them, that's the warming part of the job that i have done to secure them to build them trust, to go to their new adventure. >> reporter: owens considers herself a temporary mother, what she offers is ever lasting. do you know how much longer you will continue to do this? >> i would like to do it as long as the lord gives me the health and the strength to do the job that i'm doing. >> reporter: a job well done. cbs news, los angeles. and that's the overnight news for this wednesday. for some of you the news continues. for others check back later for cbs this morning and follow us online all the time at cbs news.com.

it's wednesday, may 19th, 2021. this is the "cbs morning news." breaking overnight, legal troubles worsen for former president trump. a state investigation into his business empire has gone from civil to criminal. no charges. a prosecutor says sheriff's deputies were justified when they shot and killed andrew brown jr. in his car, but they may not be in the clear yet. attempted kidnapping. a young girl fights off a man who nearly abducts her at a bus who nearly abducts her at a bus stop. captioning funded by cbs good morning. good to be with you. i'm anne-marie green. we begin with breaking developments o p