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Malaria - a useful tool box talk

Malaria. We’ve all heard about it, many of us will have taken anti-malaria drugs for our travels, but do we really know what we’re dealing with?

At Red Square Medical, we do love a tropical disease, so we’ve put together this guide on all things malaria to help you and your crew stay safe, whether you’re travelling for work or fun!

Key Facts
  • Malaria is caused by parasites that are transmitted via bites from infected female Anopheles mosquitoes (the pesky blighters).
  • It can take just one bite to become infected. Bites mostly occur between dusk and dawn.
  • There are 5 parasites that cause malaria in humans, with two of these (P. falciparum and P. vivax) posing a greater threat.
  • It is life threatening.
  • It is preventable and curable.
  • Malaria can’t be passed from human to human.
  • In 2020, it was estimated that there were 241 million cases of malaria worldwide.
  • In 2020, there were 627,000 deaths from malaria.
  • 95% of cases and 96% of deaths were in the World Health Organisation (WHO) African Region.
  • Children under 5 years accounted for 80% of all deaths in the region.
  • As recently as 2020, half the world’s population was at risk of malaria.
  • Infants, children under 5, pregnant women, people with HIV/AIDS and those who are immunocompromised are at most risk.
  • People with low immunity moving to areas with intense malaria transmission rates are also at risk - migrant workers, mobile populations and international travellers.
  • Numbers of infections and deaths increased significantly from 2019 to 2020 though disruption from COVID-19 is partially responsible.
Symptoms
As with so many infections, the first signs of malaria are a fever, headache, ‘chills’, fatigue, vomiting and muscle aches, which can be mild and difficult to recognise as malaria. Other symptoms may include yellow skin or whites of the eyes, confusion, lethargy, nausea, loss of appetite.

Symptoms normally appear 7-18 days after the mosquito bite. But one of the parasites, P. falciparum, can progress to severe illness and death within just 24 hours if untreated. Symptoms of P. falciparum include behavioural changes, confusion, seizures, anaemia, respiratory failure, kidney failure, coma and shock.

In contrast, malaria can take weeks or even months to develop. In cases caused by the parasites P. vivax and P. ovale, relapses may occur weeks or months after being infected. Occasionally it can be years before symptoms appear. 


Where is Malaria found?
Travellers going to malaria endemic areas in Africa, South America, and Asia are at high risk, with four African countries accounting for over half of all malaria deaths - Nigeria, Democratic Republic of the Congo, United Republic of Tanzania and Mozambique. 

It is also found in the Dominican Republic and Haiti, parts of the Middle East and some Pacific islands. 

People exposed to malaria in endemic areas who go back to their home country to visit friends and relatives are also at risk due to waning immunity. Although partial immunity is developed during years of exposure to the parasites, no one becomes fully immune to malaria. 

If you’re concerned about the malaria risk for a country you’re visiting or transiting, you can use this link from the Centers for Disease Control and Prevention to check out the risk levels, specific areas and other details: https://www.cdc.gov/malaria/travelers/country_table/a.html

Since 2015, 9 countries have been certified by the WHO Director-General as malaria-free, meaning that they have achieved 3 years or more with no reported infections. These countries are the Maldives, Sri Lanka, Kyrgyzstan, Paraguay, Uzbekistan, Argentina, Algeria, China and El Salvador.

Prevention and treatment
For decades, there has been a global battle to combat malaria. Vital methods of control now include ‘vector controls’ and antimalarial drugs. 
Vector control basically means interventions such as insecticide treated nets and indoor residual spraying, helping to reduce transmission and prevent infection. 

Antimalarial drugs are taken prior to travel to a high risk area and should be used in conjunction with other malaria control activities.
Preventative medications are available for high risk individuals (e.g. infants and pregnant women) in high risk areas, and since October 2021 a vaccine has been available for children living in areas with high P. falciparum transmission. However all medicines should be used in conjunction with other malaria control activities. 

Is it really a risk to mariners and superyacht crews?

Recently, UK P&I Club Members reported two cases of death and two more cases of serious illness, both resulting in a three month hospital admission, due to malaria.

These cases arose despite the crew members being on medication to prevent the disease. It was later found that the crew members either did not have the correct medication, for the countries they were travelling to, or they were unsure about the correct dose they should be taking. You can read more here: https://www.ukpandi.com/news-and-resources/news/2019/crew-health-advice-preventing-and-reducing-malaria-transmission/

So yes, our opinion is that it’s something we all need to be aware of and take the appropriate steps to ensure we protect ourselves to the best of our ability. 

How to protect yourself…
  • Check out the malaria risk for countries you’re due to visit well in advance.  https://travelhealthpro.org.uk/countries
  • Some antimalarial drugs must be taken for a few days or weeks prior to travel, and a few weeks after you return, so make sure you speak to your GP early enough.
  • Make sure you have the correct medication for the geographical area.
  • Make sure you have enough medication on board to last at the right dose for your whole trip, plus extra in case you are delayed. 
  • Wear long sleeved shirts and trousers in the evening when the mosquitoes are most active. 
  • Use 50% DEET based insect repellent on your skin. It smells bad though, so may repel more than just mosquitoes!
  • Sleep under nets treated with insecticide, or use over doors, windows and ventilation holes.
  • Use insecticide in cabins. 
  • Don’t sleep on deck.
This White Paper from the International Association for Medical Assistance to Travellers give some great tips on all things malaria too: https://www.iamat.org/how-to-protect-yourself-against-malaria 

It’s been well proven that early diagnosis and treatment reduces the risk of malaria and prevents deaths. So if you have travelled to a country with malaria and start to feel unwell, make sure you seek medical advice sooner rather than later. 

It’s also worth remembering that malaria can reoccur, sometime years after the original infection. 

Our Paramedic trainer, Rachel, has treated a patient who called for the ambulance himself but was unconscious by the time the crew arrived. He had a fever and was sweating profusely. He did recover sufficiently to answer questions and had felt unwell and getting worse for a few days. Symptoms were consistent with malaria but it was only when his wife arrived and mentioned the patient having had malaria previously that it was considered he could be suffering a relapse many years after his initial infection. 

So if you’ve had malaria once, and you experience symptoms that feel ‘a bit like that time I had malaria’, be alert and get checked out asap. 

Of course, if you need any further information, please get in touch, we’d be happy to help. 

by Rachel Smith 6 November 2024
Welcome to our latest guest blog where we’ve been chatting to James Griffiths, General Manager of Ocean Operations for Scenic Group and finding out more about what happens behind the scenes in order to keep a fleet of luxury expedition ships running. Here’s what James told us… As General Manager of Ocean Operations, I’m responsible for the operations of our fleet which includes four ships in service with around 850 colleagues. I currently live in Mumbles, near Swansea in the UK, but due to the nature of my work I spend a significant amount of time living in Croatia. Prior to this role, I spent many years working at sea and worked up through the ranks to Captain and over the last 15 years, my main focus has been on polar expedition travel. I hold a master mariner certificate of competency in addition to a degree in engineering and a post graduate diploma in law. Part of my job is to work with our medical service provider (Red Square Medical) to ensure that our ships are offering medical services that are appropriate for their deployment, and this can often be to some of the most extreme and remote locations around the world. It’s extremely varied, though during the COVID-19 pandemic, I came ashore when our operations paused for a significant period of time. I was fortunate enough to be given the opportunity to lead the restart of our Ocean Operations, which included setting up everything from a company to manage the ships, to selecting our crewing, medical, helicopter and submarine partners and providers, amongst many other things. Our areas of operation, and the nature of our cruises (expedition), plus having aircraft and submersibles onboard some, do mean additional elements involved in the management of these ships. You could say that this current position is more of a happy coincidence than one that I actually planned for! In some ways this is a great positive - I do think it’s possible to plan a little too much and then be disappointed if things don’t go quite the way you had imagined. But there’s no danger of that here!
by Rachel Smith 3 October 2024
Back in February 2022, we brought you one of our very first guest blogs from Simon Lawton, a Paramedic who has swapped out his ambulance for a Superyacht! You can read the original blog here: https://www.redsquaremedical.com/superyacht-paramedic-a-guest-blog-from-simon-lawton Over the last 2+ years, we’ve followed Simon’s career, and some of you may even recognise him as he does put a Red Square Medical instructor hat on from time to time. But, as for all healthcare professionals, Simon has to keep his skills up to date. So, we asked him to tell us a bit more about how he juggles this along with a rota onboard. Here’s what he told us… I’m originally from Stoke-on-Trent in the UK and trained as a HCPC registered Paramedic. I’ve spent almost 5 years working at sea now, with almost continuous employment on three different vessels, after leaving the ambulance service in 2019. My first role was as a Paramedic/Deck hand on Superyachts, and I now work as a Medical Officer on a maritime vessel. Even before I applied to become a Paramedic, I intended to complete my studies to help find employment in a remote or offshore environment. I had always been attracted to the idea of being able to travel the world while earning a salary. Working at sea has meant that I have travelled extensively, earnt a higher salary, and have a better work/rest balance than would be possible in a role on land. Note: At the time of writing, a qualified Paramedic’s starting pay in the UK was £28,407 and Simon’s old rota was 2 days, 2 nights (all 12 hours) and 4 days off with very inflexible annual leave. This year I decided to carry out some continual professional development (CPD) at a hospital in Mexico, to keep my skills up to date. I was interested in travelling to find out more about how healthcare services are provided outside the UK and Europe. The CPD activity in Mexico allowed me to do exactly that, while caring for and treating a wide variety of patients who had either self-presented in the emergency department, or been conveyed to hospital by ambulance.
by Rachel Smith 25 September 2024
Welcome to our September blog, and as we all start (in the UK at least!) to think about adding a few layers for warmth, we’d like to talk about getting naked! Well, to be more specific, getting bra’s off. Fact: Women are dying because bystanders are less likely to carry out CPR on women than men. Research shows that women are 27% less likely to receive CPR than men and if a defibrillator is used, their chance of survival is affected by bra’s being left on. Most of us have never had the chance to train using a female manikin. The #BraOffDefibOn campaign aims to address the inequality in CPR for women and we’re supporting it.
by Rachel Smith 4 September 2024
In August, we brought you a Guest Blog from Mark Hannaford, the founder of World Extreme Medicine. This month, it’s the turn of another of the key WEM faculty members… introducing Dr Will Duffin. Hello everyone, I’m Dr Will Duffin and I’m a GP in Devon in the UK. I’m the Joint Medical Director of World Extreme Medicine (WEM) and the Lead Medic for the US CBS TV show ‘Survivor’ - for Seasons 43, 44, 46 and 48, which is also through WEM. Extreme Medicine is healthcare that is delivered across the full spectrum of remote, austere and challenging environments. This includes high mountains, deep oceans, jungles, deserts, polar, low earth orbit and refugee camps… the list is endless. Being a part of the wider Extreme Medicine community through WEM has been a portal into new worlds of possibility and opportunity in my medical career as an NHS GP. It’s a huge privilege to treat patients in a remote setting. You get to do proper ‘hands on’ medicine that truly tests your clinical skills, risk management and decision making. Even basic techniques and principles done well can transform patient outcomes. That’s the big reward. I graduated from Bristol Medical School in 2008 and completed my GP Training in Cornwall, UK in 2016. In between, I spent 18 months in Australia to gain as much emergency department experience as I could, whilst doing Wilderness Medicine Courses. I landed my first expedition gig 12 years ago when I was post-FY2 (Foundation Years follow on after qualifying as a doctor). I covered a Kilimanjaro Trek after another doctor dropped out at the last minute. Once I had this under my belt, I was able to leverage this experience to get the next trip. So, I soon found myself providing regular medical cover for various commercial and charity sector expeditions. These expeditions have taken me all over the world: Kilimanjaro, the Peruvian Andes, the Himalayas, Northern China, Eastern Europe, Myanmar and Madagascar. One highlight was working as the private doctor for a Luxury Trans-Siberian Train! Though I became frustrated having to constantly wrangle annual leave to go away, so I made the switch to being a freelance (locum) GP, which has given me the flexibility I need. I joined WEM in 2018 after responding to a Facebook Ad for the ‘Survivor’ job. I was invited to a selection weekend in the Peak District, which is when I first met Mark Hannaford WEM founder and CEO and Dr Joe Rowles, WEM’s other Medical Director, and it all went on from there. Early on, I was given the opportunity to lead on the content for the annual World Extreme Medicine Conference and our various podcasts and webinars. Through doing this, I have met a colourful cast of characters; other extreme medics who are as audacious as they are inspirational! We have a lot of fun at the conference every year, learning from one another. https://worldextrememedicine.com/registration/wem-conference-2024 (Note from the RSM team – the conference is highly recommended and well worth a visit!)
by Rachel Smith 5 August 2024
Last year, the Red Square Medical team descended on the World Extreme Medicine (WEM) conference for the very first time. We’d been aware of this unique organisation for many years, but just not had the chance to get involved. Liz was involved in a panel discussion and spoke at the conference, and we came away literally buzzing with enthusiasm - our first impressions were that WEM is a place with no ego’s, where everyone wants to learn, and is willing to share. We met some of the most fascinating people ever and can’t wait to go back this year. But what about the person who started it all… We spoke to Mark Hannaford, founder of World Extreme Medicine and its far reaching impact. Here’s what he had to say. I’ve been involved in expeditions, working in low resource environments and extreme medicine for the past three decades! My family was made up of generations of seafarers from Cornwall although I was brought up variously in Devon, Antigua in the Caribbean and the Middle East; reflecting my father’s job as a Master Mariner. My father was at one time the youngest captain aboard the UK’s largest registered vessel, and my grandfather was Harbour Master for Malta and the first in that role in Plymouth at the start of Queen Elizabeth’s reign. I wear a number of hats but primarily I am the founder and CEO of World Extreme Medicine, and the annual WEM Conference. I also founded the MSc in Extreme Medicine at the University of Exeter and Graduate Certificate program at Bouvré College of Health Sciences, Northeastern University, Boston.
by Rachel Smith 3 July 2024
Women’s health is a huge topic, while it’s true that in the maritime sector women make up just 2% of seafarers at sea, up to 34% of the shore based staff are female. Looking at the bigger picture, women’s health directly affects just under half of our population globally, and indirectly (whether you like it or not!) the other half, we thought it was worth a blog about some of the issues, and the taboo’s, that could be affecting our maritime workforce and the women in our lives. It's common knowledge that women experience huge hormonal changes at puberty and menopause, both of which can have significant physical and mental health impacts. In the UK, there is a growing discussion and openness about peri-menopause (the years before periods stop altogether) and how for some women, this has devastating effects across all aspects of their lives, including work. Of course men experience changes at puberty, but their later life changes are less significant and generally don’t affect their ability to work. In December 2023 the World Health Organisation (WHO) issued a statement to advise that every year, at least 40 million women are likely to experience a long term health problem caused by childbirth. So there’s a good chance that we all know one or more women affected, or if you are female… this could be you. As part of a special series on maternal health, the study showed a high burden of postnatal conditions that persist in the months and years after giving birth. These issues include more than a third of women experiencing pain during intercourse, urinary incontinence (8-31%), anal incontinence (19%), anxiety (9-24%), depression (11-17%), perineal pain (11%), a fear of childbirth (6-15%) and secondary infertility (11%). All in all it doesn’t paint a great picture of life after childbirth for some women. If any of your workers experience these issues, either on or off shore, it could have a significant impact on areas of their working life and it’s something they may be reluctant to open up about. Even before childbirth, we may take it for granted that contraception is available, certainly in the developed world. But in developing countries where sexual violence is not uncommon, contraception is considered lifesaving due to the high level of unsafe abortions carried out. Around 13 million women (and girls) under 20 give birth annually and complications in the pregnancy and birth is a leading cause of death. Consequently abortion is an option, but this carries its own huge risks.
by Rachel Smith 25 June 2024
We just love speaking to and finding out more about the people who inspire us and we guarantee that this month’s blog will not disappoint! We first got in touch with Wendy Sullivan via LinkedIn and thought she seemed like a pretty awesome human. Wendy and her company, Maritime Medical Solutions in Australia, certainly share the same outlook as Red Square Medical. Fast forward a couple of years and we’re now collaborating on a project in Australia and the Pacific Islands. What we’ve learnt along the way is simply fascinating and Wendy has kindly agreed to share her story with us… Here is Wendy’s Guest Blog: I was born in Canada, grew up in Africa and now call Australia my home. I feel lucky to live in paradise where the weather allows us to be on the water year-round. I had to work hard to gain my Australian citizenship and I credit my work in the marine industry with giving me a pathway to stay in Australia permanently. It took years of hard work and uncertainty to gain my residency and is still one of the achievements I am most proud of. I started sailing in Canada and since emigrating to Australia gained my professional and commercial qualifications as a vessel master, marine engine driver, trainer and assessor. I also have a Diploma of Paramedical Science, ship masters medical qualifications, business administration and development and there is still so much more to come.
by Rachel Smith 17 June 2024
Working at sea can be one of the most rewarding and fulfilling careers. But you can’t gloss over the fact that it can be dangerous. Whether you’re working on a tanker, ploughing up and down the oceans, a Superyacht enjoying a busy season of charters, or any vessel in between; our love/hate relationship buddy Neptune takes no prisoners! The Safety of Lives at Sea (SOLAS) Convention in its successive forms is generally regarded as the most important of all international treaties concerning the safety of merchant and other vessels. The first version was adopted in 1914, in response to the Titanic disaster, and went through several iterations up to 1974. The Convention in force today is generally referred to as SOLAS 1974, as amended. SOLAS regulations cover all areas of safety at sea, including construction, fire prevention and detection, life saving equipment, cargo carriage, navigation, communications and a host of other areas. Regulation 33 of the SOLAS Convention applies to all ships, and places an obligation on Masters to respond to distress calls at sea and proceed ‘with all speed’ to their assistance. Anyone working in the maritime sector, hopes that they are never on the receiving end of this regulation, but we’ve experienced two quite different instances, where the ships we work with have responded and our Medical teams have played an important part in rendering aid.
by Rachel Smith 29 May 2024
This week’s blog is an introduction to telemedicine as although it’s probably been around for longer than you think, you might not be familiar with what’s available to help you. So whether you’re a leisure sailor taking on the ARC; work in commercial shipping, spend your time on a Superyacht, or anything in between, read on for more information… According to the UKs National Institute for Clinical Excellence, (NICE: https://www.nice.org.uk/), ships being on the water for months at a time mean that health can be a life-threatening challenge for sailors and seafarers. Access to healthcare providers has always been one of the most critical issues for offshore crews and it’s worth remembering that the International Labour Organization (ILO), dictates that access to medical treatments and health services should be guaranteed to seafarers in the same way as for people working ashore. Nowadays, telemedicine technology has emerged to improve healthcare delivery in many remote areas where there is no direct access to healthcare services using telecommunication services. Among them, maritime Telemedical Assistance Services (TMAS) have become more readily available and are now considered an integral part of a shipowner's emergency response operations. The advent and uptake of Starlink in both the commercial and leisure sectors can only be a positive from a medical perspective. So, what is Telemedicine? What does it do and how does it work? Telemedicine is a term that’s becoming more and more common in the maritime world. Quite simply, it is the provision of remote clinical services, via real-time two-way communication between the onboard medic (trained crew or healthcare professionals) and/or the patient themselves, and a shore-based healthcare professional, using electronic audio and visual means. The modern history of Telemedicine can be traced back as far as 1905, when a Dutch physician used long distance transfer of ECGs (electrocardiograms) to be read remotely. But as early as the 1920s onwards, radio communications were being used to pass medical information to patients at sea on ships and on remote islands. More recently, the COVID-19 pandemic has brought Telemedicine to the forefront of healthcare. Though we may not easily recognise what it actually is, the majority of GPs (certainly in the UK) and other allied healthcare professionals in the non-acute world, such as Physiotherapists and Mental Health support, have relied heavily on telephone and video consultations since March 2020. A survey conducted by Nautilus International and Martek Marine (2017) showed that a staggering 98% of seafarers believed that greater access to Telemedicine support would save lives at sea. Of those questioned, 68% had been on a vessel that was forced to divert due to a medical emergency and 70% had been on a vessel where there had been a medical evacuation. Emergencies experienced at sea ranged from severed limbs and broken bones, to gunshot wounds, tropical diseases, allergic reactions and sudden cardiac arrest. Whether you’re a commercial seafarer or leisure sailor, it would improve confidence in making a decision on whether an injury, or illness was severe enough to warrant a diversion, or evacuation, if there was a trained medic on the end of the phone or radio. Ever improving communications also means that we can now go far beyond voice calls. Photos of injuries, files of test results and even live streaming is all possible and helps to provide a much more indepth service. Our own team member, Rachel, received Telemedicine support via SatPhone and email, on a 7 metre Ocean Rowing Boat (yes, you did read that right!) in the middle of the Atlantic, when her rowing partner developed a painful injury. Remote intervention from a Doctor onshore helped to maximise use of the medical kit contents for the short and long term, rule out immediate worries of infection, and develop a pain management plan for the rest of the rowing race. One in five commercial ships a year are forced to divert for a medical emergency, with unknown numbers of other, non-commercial vessels on top. So there is also consideration for the cost and time involved, plus the stress to both the patient, and their medic who is managing a situation onboard, possibly alone!
by Rachel Smith 8 May 2024
At Red Square Medical, we’re keen to support those who have a passion for maritime medicine. While we can’t provide placements for everyone, occasionally a request pops up at just the right time and we can provide some experience and insight into our unique and specialised world. Last year we were contacted by Jordan Lin, a medical student with a love of the ocean. This is his story… When I was a boy, my dad and I used to go fishing with a local fisherman off the Norfolk coast. I absolutely loved being on the sea and so for quite a long time, I wanted to be a fisherman. When I got a bit older I kind of forgot about this and think I may have been slightly put off by watching the TV series ‘World’s Deadliest Catch’! But I have always loved being on the water and spent a lot of time sailing dinghies; I was also a swimming teacher for children back in high school and college. Later, I decided to study medicine and I’m now a final year medical student at the University of Bristol where I completed an intercalated degree; a Masters in Health Sciences Research. I’m now looking forward to starting work as a qualified Doctor in August. Though having spent 6 years training, my next 2 years will be spent working for the required two foundation training years that must be completed before being able to work independently as a Doctor in the UK. At university, I joined the VITA network which is a group dedicated to developing a health and public health approach at the heart of any response to human trafficking and exploitation. I became the blog coordinator for the organisation and you can read the blogs, including those that I have written, here: https://vita-network.com/blog/ In my spare time, I have been involved with the Bristol University Hot Air Ballooning Society and trained through the society to get my Balloon pilots licence. So, I often spend weekends during the summer flying in a leisurely fashion over Bristol and the surrounding area!
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