Mosquito bites

By Dr Naima Idris

Over one hundred and sixty (160) million people – more than half of the country’s current estimated population – are at risk of yellow fever in Nigeria, reports by the World Health Organisation (WHO) Africa Region have recently highlighted. Lately, the yellow fever virus has become of serious global health concern more because the wakes of its historic outbreaks are trailed by devastating outcomes. 

The WHO says the virus is spreading rapidly across Africa, warning that the rising trend could cause an epidemic in Nigeria, mainly because of its large population. Consequently, it issued an advisory for travellers to and out of Nigeria to consult their healthcare provider on precautionary measures required against the virus if need be. 

The Yellow Fever virus is endemic in tropical areas of Africa and Central and South America. The disease is a potentially fatal disease, as half of its patients in the toxic phase die within 7 to 10 days. 

The demography of Nigeria is one of the most important and common reasons why the fever could spike in the country. According to the region’s WHO, Nigeria is one of the countries most vulnerable to the yellow fever virus and has a history of poor health infrastructure. Additionally, the Nigerian population is largely uninformed about health and hygiene precautions, which makes them particularly susceptible to the virus.

According to the Nigeria Centre for Disease Control (NCDC), the yellow fever epidemic in Nigeria could spike in the coming weeks. This becomes worrisome due to the fact that there is no treatment for the virus; the good news is, for most people, a single dose of yellow fever vaccine gives long-term protection. 

Travellers going to areas with an outbreak are usually encouraged to consider taking a booster dose of the vaccine. This recommendation is critical to those who have been vaccinated ten years ago or more from the period of the first shot. In some countries, a booster dose of the vaccine is a requirement for entry. 

For health-conscious minds who understand the magnitude of such alarm, panicking is a reflex possibility; however, protection and precaution – especially for travellers – have proved time and again to be effective weapons in curbing epidemics. To effectively achieve this, the WHO fact sheet outlines these measures to include avoidance of close contact with people who are sick or even appear so, staying away from mosquito-infested areas, using mosquito repellent to ward them off, lodging in hotels that have been well-screened and consulting a healthcare professional about specific needs.

While precaution and protection remain key, we must be well acquainted with its symptoms, including fever, chills, headache, muscle pain and back pain. Other symptoms are nausea, vomiting, fatigue, weakness and rash. 

Most people with the initial symptoms improve within one week, while others will develop a more severe form of the disease which includes symptoms such as high fever, yellow skin (jaundice), bleeding (mouth, nose, eyes, stomach), abdominal ache and organ failure (liver and kidneys).

Though vaccines work and are the only treatment available, certain people should not be vaccinated because complications (side effect) could arise due to underlying ailment and/or treatment they are undergoing. This includes organ transplant recipients, individuals diagnosed with a malignant tumour, those diagnosed with thymus disorder associated with abnormal immune function, and patients diagnosed with primary immunodeficiency. 

Other categories include individuals who use immunosuppressive and immunomodulatory therapies and those who are allergic to a vaccine or something in the vaccine (like eggs). Allergic reaction symptoms include difficulty breathing, swelling of the face and throat, and hives. If any of these symptoms is experienced after receiving the vaccine, medical attention should be sought immediately.

All diseases require a medium to spread, be it air, water, insects, etc. For example, the yellow fever virus being a viral disease is spread through the bite of an infected Aedes aegyti mosquito which serves as the vector of the deadly disease. Worthy of note is that direct spread from one person to another does not occur. 

It is therefore expedient for individuals and businesses in Nigeria to be aware of the yellow fever virus and take the necessary measures to avoid being infected. By following the guidelines of health professionals and organisations, protecting oneself and those around from this dangerous disease is achievable.

Dr Naima Idris, a Medical Doctor and Initiator of “Girls Talk Series,” writes from Kano and can be reached via (naimageidam@gmail.com).

By Lawal Dahiru Mamman

Malaria is a mosquito-borne infectious disease that affects humans and other animals. Malaria typically causes fever, tiredness, vomiting, and headaches. 

Malaria can cause jaundice, seizures, coma, or death in severe cases. It is spread exclusively through bites of infected Anopheles mosquitoes. The mosquito bite introduces the parasites from the mosquito’s saliva into a person’s blood. Then, the parasites travel to the liver, where they mature and reproduce.

Malaria is a disease that has bedevilled and is still bedevilling the human race, with a high level of incidence in African countries. The worry is that malaria is preventable and treatable but still affects millions all year round. According to the World Health Organisation, 627,000 people died from the disease, leaving another 241,000,000 infected in 2021.

To curb the menace of this disease, the government is spending a lot, the international community is donating, and non-governmental organisations are helping to see that the world is free from malaria. 

This is mainly done by purchasing insecticide-treated mosquito nets, insecticides of different brands, seasonal malaria chemo-prevention and antimalarial drugs in case of infection.

Families also do their due diligence in ensuring that houses are spread with insecticides to kill mosquitoes and that they all sleep in the comfort and protection of mosquito nets. However, all these will not be enough if the little things are not addressed because after all the efforts indoors, you go out of the house only to find out that those tiny beasts are lurking around to feast on you.

Of the over 3,500 species of mosquitoes, three, anopheles, culex, and Aedes, are primarily of economic importance because they are disease vectors. Anopheles carries a microorganism which causes malaria ‘plasmodium’ and other species to reproduce on standing water and complete a live cycle within 18 days or above, depending on the species.

Looking at this biology, we have so many mosquitoes around that can be deciphered; hence, to eradicate malaria, our drainage systems must be functional and provided in areas that lack them to prevent water from lodging, which invariably provides a breeding ground for the parasites. 

Residents should fill up areas with stagnant water, cut grasses close to their houses and resist dumping refuse in drainages and water bodies to allow free flow.

Communities should be informed about the dangers of dumping refuse in the drainages because, besides exposing themselves to the threat of flooding and its aftermath, blocked drainages are a good ground for mosquitoes to breed since water does not flow through.

A plant that repels mosquitoes should replace some of our ornamental flowers. A study published in Malaria Journal in 2011 titled ‘Plant-based Insect Repellents: A Review of their Efficacy, Development and Testing’ revealed that lemon grass alone could either kill or repel about 95% of certain species of mosquitoes. Likewise, trees like Cinnamon could be used as shelter belts because they can repel insects, mosquitoes inclusive. Further studies could be carried out on other indigenous plant species in order to find if they possess properties that will help eradicate mosquitoes.

Eradication of malaria may seem challenging, impossible and debilitating, but a malaria-free Nigeria is possible with a commitment to the above suggestions.

Mamman, a corps member, writes from Abuja and can be reached via dahirulawal90@gmail.com.

By Hussaina Sufyan Ahmad

MEP Advocacy Communication and Social Mobilisation (ACSM) Officer, Eunice Subair, disclose that 90,000 malaria deaths are recorded yearly in Nigeria at the quarterly meeting of the Civil Society in Malaria Control, Immunisation and Nutrition (ACOMIN), held in Abuja on October 3, 2021.

Subair noted that progress is being made to control malaria, with prevalence going down from 42% in 2010 to 27% in 2015, and 23% in 2018 (MIS 2010 and NDHS 2018).

She said malaria was still a significant burden in Nigeria, and that the Seasonal Malaria Chemoprevention (SMC), was ongoing in all the eligible states.

She also requested the media to help in achieving the malaria elimination goal by making the disease a topmost topic of discourse to the public by including malaria issues in their programmes. And educating the public on the importance of sleeping inside ITNs every night to protect themselves against mosquito bites, among others.

Subair stressed the need for pregnant women to visit clinics at the earliest stage of pregnancy, to undergo antenatal care and admonished Nigerians to always go to the hospital whenever they suspect their systems to have malaria symptoms.

The Coordinator of the Civil Society in Malaria Control, Immunisation and Nutrition (ACOMIN), Ayo Ipinmoye, said more than three billion people, about half of the world’s population, are at risk of malaria, which is treatable and preventable.

He noted that the recently upgraded customised management information system would save the Federal Government about N293,700,000 in logistics cost, out of the N890m budgeted for the implementation of the malaria Intervention programme.

He further explained that the deployment of technology in data collection would help check malaria commodities, such as the ACT and insecticide-treated net.

He said with the latest upgrade of ACOMIS, data could be collected from the field on a real-time basis across all implementing states.