Latest / Health Matters / Food Poisoning & Ready to Eat Meals
Transcript
- 0:00Speaker 1: If it's a matter of health, it matters. Health Matters
- 0:04Speaker 1: with Daniel Martin. Welcome aboard Health Matters, everybody. I'm Danielle Martin,
- 0:09Speaker 1: and yes, your health matters. On today's edition, we have
- 0:14Speaker 1: to talk about what's been discussed in Parliament right now.
- 0:18Speaker 1: It was brought up.
- 0:19Speaker 1: A reminder of of the case of gastroenteritis being developed
- 0:24Speaker 1: after people ate some ready to eat meals that were
- 0:27Speaker 1: distributed as part of Total Defense Day.
- 0:31Speaker 1: Minister for Sustainability and the Environment, Grace Fu gave an
- 0:36Speaker 1: update that in total there were 187 cases of gastroenteritis
- 0:41Speaker 1: from that incident. Some students from School of the Arts
- 0:45Speaker 1: fell ill, and Ms. Fu updated and said that all
- 0:48Speaker 1: those affected were recovered and none had been hospitalized. Uh,
- 0:53Speaker 1: I believe two might have been older individuals as well,
- 0:56Speaker 1: one was an older individual.
- 0:58Speaker 1: Um, she went on to say that the Singapore Food
- 1:00Speaker 1: Agency has actually tested samples of the meals and did
- 1:04Speaker 1: not find any food-borne pathogens. It's trying to remind ourselves
- 1:10Speaker 1: about the issue of gastroenteritis and how likely it is
- 1:13Speaker 1: to develop from something like ready to eat meals, which
- 1:16Speaker 1: The government has said in parliament today quite clearly that
- 1:18Speaker 1: we have to get used to the idea that this
- 1:20Speaker 1: will be a regular part of Singapore lifestyle as well.
- 1:24Speaker 1: Gastroenterologist Doctor Desmond W is joining us based at Mount
- 1:27Speaker 1: Elizabeth Novena. Doctor Yi, hello, good to talk to you again.
- 1:31Speaker 2: Hi, Daniel, thanks for inviting me.
- 1:33Speaker 1: How, when you hear 187 cases from one incident, um,
- 1:39Speaker 1: is that, I mean, that's still not as bad as
- 1:41Speaker 1: the TikTok ByteDance situation. I remember we talked about that
- 1:44Speaker 1: as well.
- 1:45Speaker 1: Um, the central kitchen in that case, it wasn't ready
- 1:47Speaker 1: to eat meal, but does 187 from one incident sound
- 1:51Speaker 1: like a lot to you?
- 1:53Speaker 2: Yes, it's a lot, but frankly, I'm not surprised because
- 1:57Speaker 2: it's ready to eat food and they carry a potential danger.
- 2:00Speaker 2: We always tell the patients the best way to protect
- 2:03Speaker 2: yourself is to cook yourself so that you make sure
- 2:06Speaker 2: that the food is well cooked and all the bacteria, viruses,
- 2:09Speaker 2: whatever are being removed. So every time we eat ready
- 2:12Speaker 2: to eat food like in this case, or you go.
- 2:14Speaker 2: The supermarket, you buy salad or you buy a bun,
- 2:17Speaker 2: for example, you put it in your mouth. We are
- 2:19Speaker 2: at the mercy of the preparation of the food, so
- 2:22Speaker 2: we have to be used, we have to take, we
- 2:24Speaker 2: have to be used to the fact that every time
- 2:25Speaker 2: we take a risk of these foods, we run a
- 2:27Speaker 2: small risk that we may get some form of food.
- 2:30Speaker 1: In general, in general, freshly prepared food that you've done yourself,
- 2:35Speaker 1: you have more control over and also cook the food
- 2:38Speaker 1: that's cooked in front of you and you eat immediately
- 2:41Speaker 1: like at the hawker center, generally less chance as well.
- 2:44Speaker 2: That's correct. So I always ask my patients, you want
- 2:47Speaker 2: to be safe. You see them cooking in front of you,
- 2:50Speaker 2: either a soup noodle or fried rice or something like that.
- 2:53Speaker 2: If they are say some, some vegetables store some mixed
- 2:57Speaker 2: vegetable rice store, for example, they put the food there,
- 3:00Speaker 2: you be very sure that the food is being kept
- 3:02Speaker 2: outside for less than 2 hours, for example. So every
- 3:04Speaker 2: time we eat some food that beautiful for others, we
- 3:06Speaker 2: have to be ready. But this is not surprising.
- 3:08Speaker 2: Because in the United States, there have been regular recall
- 3:11Speaker 2: of food such as broccoli, bean sprouts, ham or cheese,
- 3:17Speaker 2: because when the food are prepared somewhere during the manufacturing,
- 3:20Speaker 2: the process, the personnel involved or the transfer process, sometimes
- 3:24Speaker 2: things can go wrong, so that we have to prepare
- 3:27Speaker 2: the first thing, first things will happen.
- 3:29Speaker 1: So, OK, what is it that causes the gastroenteritis? Is
- 3:34Speaker 1: there a specific
- 3:36Speaker 1: Pathogen in the food, is it the food has gone bad?
- 3:38Speaker 1: What is it that causes gastroenteritiss?
- 3:41Speaker 2: Yeah, so I told my patients when they, in fact,
- 3:44Speaker 2: I got two patients that came in today for diarrhea
- 3:46Speaker 2: and vomiting, so they got food poisoning or gastric fluid
- 3:49Speaker 2: layman term. I told them that it can be a virus,
- 3:52Speaker 2: it can be a bacteria, it can be a parasite.
- 3:55Speaker 2: From my experience in Singapore, usually it's a virus, and
- 3:58Speaker 2: the name of the virus is a norovirus. I see
- 4:00Speaker 2: this almost on a daily basis. What happened is that
- 4:03Speaker 2: when this when this virus entered the mouth, it will
- 4:05Speaker 2: go to the stomach. It would impair the movement of the.
- 4:09Speaker 2: So the stomach don't move the food down from the
- 4:11Speaker 2: stomach to the duodenum and they vomit it out. The
- 4:13Speaker 2: virus can go to the small intestine and trigger off
- 4:15Speaker 2: a reaction, and they can have watery stool and lose motion.
- 4:19Speaker 2: They have some tummy pain and fever. So that usually
- 4:21Speaker 2: in Singapore norovirus number one causation causative agent bacteria actually
- 4:26Speaker 2: I would say less than 10%. We do see all
- 4:28Speaker 2: sorts of bacteria because, you know, Singaporeans love to travel
- 4:31Speaker 2: and sometimes when they travel they bring the bacteria or
- 4:33Speaker 2: the virus back from overseas.
- 4:36Speaker 1: So what is it about the food wherein a virus,
- 4:39Speaker 1: a bacteria or a parasite has appeared in the food chain?
- 4:44Speaker 1: Is it, I mean, what are the various ways that
- 4:46Speaker 1: this can happen? Is it because it's been left out
- 4:47Speaker 1: too long and then it just develops? Is it because
- 4:50Speaker 1: an infected individual handles the food? What are the ways
- 4:53Speaker 1: in which it enters a ready to eat meal?
- 4:56Speaker 2: Yeah, so number one, he said the food has been
- 4:58Speaker 2: the ingredient, the raw ingredients have been contaminated, as I mentioned,
- 5:02Speaker 2: in the US there have been bean sprouts, lettuce, there
- 5:04Speaker 2: been ham recall because they found contaminant with contamination with E. coli,
- 5:09Speaker 2: for example. So it can be the raw ingredient or
- 5:12Speaker 2: it can be the process. It can a lot of
- 5:15Speaker 2: time it's actually the food handler or the manufacturer. So if,
- 5:18Speaker 2: for example, I always give the example that if I
- 5:21Speaker 2: am having food poisoning, if
- 5:23Speaker 2: I have virus in my stool and my vomiters, and
- 5:25Speaker 2: I don't care about my hygiene. I wash my hands
- 5:28Speaker 2: with only water without soap or detergent, and then I
- 5:32Speaker 2: prepare a sandwich for you, then you will get it
- 5:34Speaker 2: for my dirty hand, not really from the sandwich, but
- 5:37Speaker 2: for my dirty hands for my poor hygiene. But on
- 5:39Speaker 2: the matter, actually the same food agency have very strict
- 5:42Speaker 2: rules on the food processing. For example, everybody has to
- 5:45Speaker 2: undergo a course on food hygiene, etc. and pass the
- 5:49Speaker 2: course because they are.
- 5:50Speaker 2: to work in the food industry and the moment they
- 5:52Speaker 2: have diarrhea or any form of illnesses, they have they
- 5:55Speaker 2: have a mandated medical leave. They are not allowed to
- 5:58Speaker 2: go to work and if they have something bad like salmonella,
- 6:01Speaker 2: they are not allowed to work until they clear the bacteria.
- 6:03Speaker 2: So we have very strict rules already and that's what's
- 6:06Speaker 2: the best that the government protect us. And
- 6:09Speaker 1: your food is packaged and labeled as to the time
- 6:12Speaker 1: it was prepared as well, because the duration of shelf
- 6:15Speaker 1: life is also a factor here, is it?
- 6:17Speaker 2: Yeah, so every food they will put in a shelf life,
- 6:20Speaker 2: the rule of thumb is that if any food is
- 6:22Speaker 2: left open. Say for example, if I cook a big
- 6:24Speaker 2: dish of a crab bihoon, I leave it outside my
- 6:27Speaker 2: dining table, and guests come and try my crab bihoon.
- 6:30Speaker 2: I should only keep it for less than 2 hours.
- 6:33Speaker 2: If I leave any food for beyond 2 hours, they
- 6:35Speaker 2: can be contaminated and the time allowed the bacteria.
- 6:39Speaker 2: Or the virus to multiply inside the food and they
- 6:42Speaker 2: can infect my guests. So therefore, if I cook a
- 6:44Speaker 2: big plate of crab hoon and invite you and invite
- 6:47Speaker 2: other friends to come over, I should actually put them
- 6:50Speaker 2: in small alecot. When you come, OK, you eat this portion,
- 6:54Speaker 2: and 2 hours later my relative comes. I put I'll
- 6:58Speaker 2: bring it from the fridge, heat it up and serve
- 6:59Speaker 2: it to them.
- 7:01Speaker 2: the whole crap for more than 2 hours.
- 7:06Speaker 1: That's
- 7:06Speaker 1: a good tip in terms of entertaining as well. One
- 7:10Speaker 1: of our listeners, what's happening across at 963-11938 and talks
- 7:13Speaker 1: about whether Singapore's weather characterized by high temperatures and humidity levels,
- 7:17Speaker 1: can that contribute to the survival and replication of some
- 7:20Speaker 1: of these viruses, bacteria, parasites.
- 7:23Speaker 2: Yeah, actually there have been studies that show that when
- 7:25Speaker 2: the when the temperature is humid or when it's warm,
- 7:28Speaker 2: certain bacteria may actually multiply faster. But when the temperature
- 7:32Speaker 2: is cold, actually other viruses may replicate faster. So yes,
- 7:37Speaker 2: our hot temperature probably make it easier for the bacteria
- 7:41Speaker 2: or the virus to multiply.
- 7:42Speaker 2: But only for certain types. It increases certain types and
- 7:46Speaker 2: protect it from others. You still remember the rule of
- 7:48Speaker 2: thumb of 2 hours. Any food that you are going
- 7:51Speaker 2: to leave you know for many people to eat, leave
- 7:54Speaker 2: it outside for you should keep it for less than
- 7:56Speaker 2: 2 hours. Just keep the rest in the fridge. You
- 7:58Speaker 2: can warm it up when other guests other people come
- 8:01Speaker 2: to eat,
- 8:01Speaker 1: right.
- 8:02Speaker 1: Because it's also sometimes, because we see a lot of
- 8:06Speaker 1: mass events happening. And for mass events, you have to
- 8:10Speaker 1: provide food for the participants, for the people who are
- 8:13Speaker 1: attending the event, and that's where these prepackaged foods come
- 8:16Speaker 1: into play. But the, the, the, the cold chain is
- 8:19Speaker 1: also important, how it's handled and passed on just because
- 8:21Speaker 1: it's wrapped up in those bags, sometimes you like you
- 8:24Speaker 1: don't want to leave it lying on the side of
- 8:25Speaker 1: the road or leave it lying next to the venue
- 8:27Speaker 1: or where cars driving by, like, you know, it's also
- 8:29Speaker 1: very important to
- 8:31Speaker 1: Be very mindful about where one is keeping these in
- 8:34Speaker 1: between collection and distribution to the individual. Having said that,
- 8:38Speaker 1: looking at these 187 cases,
- 8:41Speaker 1: You know, if it is about a handler that may
- 8:44Speaker 1: have been infected, it's doubtful that he or she would
- 8:47Speaker 1: have handled 187 packages of food. So a lot of
- 8:50Speaker 1: people think that oh maybe it was one of the
- 8:51Speaker 1: ingredients of uh of the meal components. But then Miss
- 8:54Speaker 1: Graceful went on to say that the Singapore Food Agency
- 8:56Speaker 1: tested samples of the meal and did not find any
- 8:58Speaker 1: food-borne pathogens. As a medical professional, what does this indicate
- 9:03Speaker 1: to you about where it could have come from then, hypothetically?
- 9:06Speaker 2: Actually, as I say, it can be the ingredient, it
- 9:09Speaker 2: can be the food handler, it can be something wrong
- 9:11Speaker 2: with the process. It can be something wrong with the
- 9:13Speaker 2: packaging process, or maybe in the transfer process they are
- 9:16Speaker 2: subjected to too high or too low temperature. So for example,
- 9:19Speaker 2: if if the coaching could be broken, but I understand
- 9:23Speaker 2: this particular type of food I said are for emergency,
- 9:27Speaker 2: and I understand that they can be kept at room
- 9:29Speaker 2: temperature for months if not years.
- 9:32Speaker 2: It may not be so much for the coaching, yeah,
- 9:35Speaker 2: but anyway, I'm grateful that the government actually acted very promptly.
- 9:38Speaker 2: They announce it to the public so that whoever they
- 9:41Speaker 2: ate the same food on the civil defense day, they
- 9:43Speaker 2: can look up for the symptom of diarrhea. They didn't
- 9:46Speaker 2: cover up, they actually opened up very, very early in
- 9:49Speaker 2: the process. They also they also been doing investigation in
- 9:53Speaker 2: we actually take some time. What they need to do
- 9:55Speaker 2: is that, for example, if they say.
- 9:57Speaker 2: 1000 packets of food to this particular school. So hundreds
- 10:01Speaker 2: maybe 20 people have it. The other 980 people don't
- 10:04Speaker 2: have it. They need to interview both sides to find
- 10:06Speaker 2: out can they pinpoint any particular factor compared the batch
- 10:09Speaker 2: of the food compared the people that handle the food
- 10:12Speaker 2: compared the ingredients whether they come from the same source,
- 10:14Speaker 2: so it will take quite some time for them to investigate.
- 10:17Speaker 1: We're very thankful, of course, that all the cases that
- 10:21Speaker 1: have been monitored here.
- 10:23Speaker 1: Um, I mean, bearing in mind, 184 were from the school,
- 10:27Speaker 1: 2 were from active aging centers, and one from a
- 10:30Speaker 1: public agency. So it's a bit worrying when you hear
- 10:32Speaker 1: about young people and old people being affected by this,
- 10:34Speaker 1: but the good news is, um, they all receive necessary
- 10:37Speaker 1: medical attention. Nobody went to the hospital or was nobody
- 10:41Speaker 1: was hospitalized for this as well. But when it comes
- 10:44Speaker 1: to gastroenteritis, there can be a range of impact, can
- 10:48Speaker 1: it not from, from mild to very severe.
- 10:51Speaker 2: Yeah, so I told my patients when they have got
- 10:54Speaker 2: food poisoning, food poisoning, there are 4 cardinal symptoms. They
- 10:57Speaker 2: are fever, abdominal pain, vomiting, and diarrhea.
- 11:02Speaker 1: That is, I mean, so when all 4 are happening,
- 11:06Speaker 1: can all 4 happen at the same time?
- 11:08Speaker 2: Uh, they, they, they sometimes they don't. So sometimes when
- 11:10Speaker 2: the patient may just come in for vomiting.
- 11:12Speaker 2: Then there can be many possibilities, but later on they
- 11:15Speaker 2: have pain, they have cramps, they have diarrhea, and they
- 11:18Speaker 2: feel feverish, they feel cold, they have a fever, then
- 11:20Speaker 2: we are sure. But to confirm the case of food poisoning,
- 11:23Speaker 2: we have to actually send a stool for testing. We
- 11:26Speaker 2: now have a very accurate stool test. They can test
- 11:28Speaker 2: for bacteria, parasite, and virus. It costs about $500 to
- 11:32Speaker 2: $600 very.
- 11:33Speaker 2: Expensive, but I told my patient, you want to know
- 11:35Speaker 2: what happened or you don't want to know what happened.
- 11:37Speaker 2: Most patients say, I want to know what happened, even
- 11:39Speaker 2: if it's a virus. So I will do run the
- 11:41Speaker 2: test and we can get the accurate test results within
- 11:43Speaker 2: within a day. And that's how I realized that norovirus
- 11:47Speaker 2: is the commonest cause of food poisoning in my limited
- 11:49Speaker 2: personal experience in handling patients.
- 11:51Speaker 1: And it's just circulating around Singapore, is it basically?
- 11:54Speaker 2: Oh, I have so much business for it to say
- 11:57Speaker 2: during the Chinese New Year. I have I have hypothesis,
- 12:01Speaker 2: you know, if I come to your home to buy then, OK,
- 12:04Speaker 2: and you offer me some love letters, I will just
- 12:06Speaker 2: say thank you very much. I pick it up on
- 12:07Speaker 2: my finger. I put it in my mouth, but I
- 12:10Speaker 2: could have been touching a lot of things from my
- 12:12Speaker 2: home to your home, like maybe a lift button, maybe
- 12:15Speaker 2: a doorknob, maybe the surfaces in the wall, whatever.
- 12:19Speaker 2: And I do not know who had touched the service before.
- 12:22Speaker 2: So during the Chinese New Year, I have a lot
- 12:23Speaker 2: of patients coming for no virus. That's one we, we
- 12:27Speaker 2: do have to wash hands before we put things in
- 12:29Speaker 2: your mouth.
- 12:30Speaker 1: It's
- 12:30Speaker 1: also, right? You're all stand over there and then like,
- 12:33Speaker 1: you know, you're saying these, these chants out into the
- 12:36Speaker 1: food basically.
- 12:38Speaker 2: OK, saliva normally well because I have a patient coming
- 12:42Speaker 2: in to mean they are intimate with.
- 12:44Speaker 2: sexual partner, the kids, and they don't both in the same,
- 12:48Speaker 2: so I do not believe saliva per se is infectious,
- 12:51Speaker 2: but the vomitters will be infectious. For example, if I
- 12:54Speaker 2: vomit out the stuff that I vomit out will have
- 12:56Speaker 2: the bacteria, the virus. If you are my mate, you
- 12:59Speaker 2: clean up and then you serve an apple to another person,
- 13:02Speaker 2: then you can pass it to another person. But other
- 13:05Speaker 2: thing I told my patient is or the public is
- 13:07Speaker 2: that when you have food poisoning, you
- 13:08Speaker 2: not be admitted all the time. Look out for symptoms
- 13:11Speaker 2: of dehydration or severe infection. When you're having fever and
- 13:14Speaker 2: you're shivering, that may be a bad bacterial infection. You
- 13:18Speaker 2: should see a doctor as soon as soon as possible.
- 13:21Speaker 2: And look at the signs of dehydration. When we are dehydration,
- 13:24Speaker 2: we have a few symptoms. First, we don't pee or
- 13:26Speaker 2: the pee become very yellow or we are when we
- 13:29Speaker 2: are hypovolemic, then when we change posture like from a
- 13:32Speaker 2: sitting to a standard.
- 13:33Speaker 2: Position or lying to a standing when they change posture,
- 13:36Speaker 2: we have not enough blood for the heart to pump
- 13:38Speaker 2: to the brain, so we feel dizzy or even faint.
- 13:40Speaker 2: So when you change posture, you feel dizzy, that may
- 13:42Speaker 2: be a sign of dehydration. We noticed that you don't
- 13:44Speaker 2: pee for the whole day, then maybe you're very dehydrated.
- 13:47Speaker 2: That's when you seek medical help.
- 13:49Speaker 1: Got it. So yeah, those are the red flags to
- 13:51Speaker 1: look out for. Otherwise, if those red flags are not
- 13:54Speaker 1: showing up and it's the discomfort and the frequent visits
- 13:57Speaker 1: to the toilet.
- 13:58Speaker 1: Can you self-medicate and do this on your own OTC stuff?
- 14:03Speaker 2: Oh yes, yeah, we so patient. I told my patient,
- 14:05Speaker 2: you need to be in the hospital when you, when you,
- 14:08Speaker 2: I mean you can be discharged when you eat more
- 14:10Speaker 2: than you poop. So obviously when you're not eating and
- 14:12Speaker 2: vomiting and you have 10 times diarrhea, you'll be dehydrated naturally.
- 14:16Speaker 2: But if you are still able to eat or at
- 14:18Speaker 2: least
- 14:18Speaker 2: Drink fluid and your diarrhea is say 3 or 4
- 14:21Speaker 2: times and you're still peeing. You don't feel dizzy when
- 14:23Speaker 2: you change posture, then you can just drink a lot
- 14:25Speaker 2: of fluid. I recommend nutrition to either drink coconut water.
- 14:28Speaker 2: Somehow we can well tolerate that or drink porish water.
- 14:31Speaker 2: Avoid taking milk or spicy food when you have a
- 14:34Speaker 2: gastroenteritis because they may sometimes make the diarrhea worse. And
- 14:37Speaker 1: how long can it persist
- 14:38Speaker 1: for?
- 14:39Speaker 2: OK, usually most of the food poisoning or viral habits
- 14:43Speaker 2: or viral gastroenteritis, we resolved completely by 7 days. We
- 14:47Speaker 2: don't keep them in the hospital for 7 days, normally
- 14:49Speaker 2: by day 2 or day 3 when they stop vomiting,
- 14:52Speaker 2: they can drink and the diarrhea slows down, they can be.
- 14:54Speaker 2: Charge for those that have diarrhea or vomiting for more
- 14:57Speaker 2: than one week, we look for other funny stuff such
- 15:00Speaker 2: as Campylobacter, Clostridium difficile, or salmonella. So some bacteria may
- 15:04Speaker 2: last for more than a week, but most of the
- 15:06Speaker 2: viruses one normally resolve within a few days.
- 15:10Speaker 1: C. diff also leads to this.
- 15:12Speaker 2: C. diff can cause food poisoning and they can they
- 15:15Speaker 2: can have diarrhea for more than a week until we
- 15:18Speaker 2: get the right antibiotics.
- 15:20Speaker 1: Oh, that's intolerable. Absolutely. And how do you figure out
- 15:23Speaker 1: which is the right antibiotic you have to go for
- 15:24Speaker 1: a test?
- 15:26Speaker 2: Actually no need most of the time we get
- 15:28Speaker 2: And antibiotic, we have a certain guideline. the guidelines will
- 15:31Speaker 2: be quite safe, but we do need to do the
- 15:34Speaker 2: special stool test to figure out is it a virus
- 15:36Speaker 2: or bacteria. I would say that if you're still unwell
- 15:39Speaker 2: after 3 to 4 days, that may be a bacteria
- 15:41Speaker 2: and maybe seek medical help.
- 15:43Speaker 1: Dr. White, this has been invaluable. Thank you for your
- 15:46Speaker 1: time
- 15:46Speaker 1: today.
- 15:47Speaker 2: I confirm.
- 15:51Speaker 2: OK. Good to
- 15:53Speaker 1: have you on board. Doctor Desmond Y is a gastroenterologist.
- 15:57Speaker 1: I've been interviewing him for over 15 years on my
- 15:59Speaker 1: health programs. He's based at Mount Elizabeth Novena. This has
- 16:03Speaker 1: been Health Matters.
- 16:09Speaker 1: Before making any decisions based on the information in our program,
- 16:14Speaker 1: please consult a medical professional.