doesn't protect us from heart disease or cancer and the university of auckland new zealand says that vitamin d. doesn't increase our boate density or protects us from us to a promoter's so what do you think about vitamin d. well vitamin d. is an essential nutrient and we can we can build it ourselves and skin you know when we expose ourselves to sun so the part nutrition places mind a world except if you hold your house down for example and you don't get enough sun then you should think about low level supplements so what about pregnant women we got a question from mary sue mcdonald's she wants to know if she needs special vitamins during her pregnancy when nugent requirements are higher in pregnancy and most of those needs you can actually meet with your normal nutrition you need to optimize it maybe but some a new trend such as foley case or i don't mean you need to supplement case of an iron deficiency you should also supplement iron and what about children do they have special meat where they need a good nutrition because they are growing and developing but they don't need supple

university of auckland. he acknowledges new zealand's success comes in part from its small size and isolationbut also from elevating public health over economic concerns. >> and in fact, our former prime minister, helen clark, was basically said that you can recover from a damaged economy, but you can't recover if you're dead from covid-19.ch >>rin: next door, australia has also had success. australia's conservative prime minister, scott morrison, led with science and stark warnings. he issued an early stay-at-home order, movement restrictions, >> there are no guarantees, i want to stress. this virus writes its own rules and we have to seek to try and understand them as best we can, and respond as best we can toe essures that we face. >> schifrin: morrison's response was a political recovery, afdur he stumbleng australia's worst ever brush fires. tukuitonga fears the u.s. is stumbling today. >> in terms of the leadership r the nation and for the world, that the u.s., as we have known it, isn't shing those ndadership required for controlling the ic at home, but obviously in terms of communicating to the rest of the

let's speak to one of the scientists who has been advising the new zealand government, dr siouxsie wiles, who is a microbiologist at the university of aucklandh did the early lockdown of your country, how much was that key to your success at tackling the virus? 0h, was that key to your success at tackling the virus? oh, i think it was absolutely key. i mean, the prime minister was very clear that she wanted to move fast and early and that is what she did. and it began with a strategy i think of trying to suppress the curve of the infection but then moved to a strategy of trying to eliminate it completely. why? i guess the buzzword or phrase was flat in the curve, that if you spread out the number of infections, you can stop your health system from being overwhelmed. but it was clear that if we moved very early, because we are so far away and we had a few weeks to watch what was happening in other countries, we knew that if we moved early, we could do better than flatten the curve and stop the spread and that has been our strategy. so in terms of your lockdown, describe it? everybody but an essential worker, which are people involved in food