Common Causes of Recurrent Parasitic Infections: Reasons, Risk Factors, Treatment and Prevention

Even after getting treatment a parasitic infection can return sometimes. This does not always mean that the medicine is ineffective or not working well. In some rare cases, an individual may experience parasites even after receiving treatment. Some common causes of recurrent parasitic infections could involve consumption of contaminated water or food, poor hand hygiene practice, infected soil and close contact with an infected person. Hence, understanding the  common causes and type of parasite also matters since different parasites have different life cycles and treatment requirements.

Some antiparasitic medicines, involving ivermectin, are used specifically for treating parasitic infections. However,it is also crucial to know that the  ivermectin drug does not kill all parasites. Although, finding the actual reason behind a recurrence of parasitic infection is important before repeating the treatment. This blog will explain the common causes, risk factors, precautions and treatment considerations. 

Common Causes of Recurrent Parasitic Infections

Some of the common causes of recurrent parasitic infections are mentioned below:

Reinfection After Successful Treatment

One common reason could be simply getting infected again. Treatment can reduce the parasite symptoms that were present in the body at the time, but it cannot prevent a new infection.

For instance, if you are walking barefoot on contaminated soil or drinking unsafe water from an unreliable source. This may contribute to new parasitic exposure. So, when you find that symptoms are returning do not assume that the earlier infection was not treated properly.

Incomplete Treatment

Some parasitic infections may need a particular dose and prolonged treatment under the consultation of a medical expert. Skipping doses, suddenly stopping treatment early, or using improper medicine may leave some parts or living cells of parasitic behind.

This is generally useful to know because different parasites respond to different medicines and doses. An antiparasitic drug that works for one organism may not support another.

Taking additional medicine doses without taking medical advice is also not a safe choice to tackle recurring symptoms.

Parasite Life Cycle

Sometimes parasites may have complicated life cycles. Some medicines may tackle certain stages of infection more effectively than others. Eggs, larvae, and adult parasites may react differently depending on the infection type.

As a result symptoms may continue or reappear to you even when a medicine has been affected by susceptible parasites. 

Household Or Close-Contact Exposure

 Some parasitic infections can spread among individuals living in the same household. If one person receives treatment but another infected person remains untreated, exposure may happen again.

This is why some infections require attention while coming in to close contacts, sharing beds and clothes along with the surrounding environment.

Common Risk Factors For Parasitic Infections

Certain risk factors can contribute to getting a parasitic reinfection or becoming infected again.

• Unsafe drinking water: Contaminated water with parasites can be a big factor of reinfection.

• Poor hand hygiene: Not properly cleaning hands after using the toilet or before eating any meal can allow parasites to rebuild the parasitic cells in the body.

• Contaminated food: Having raw, undercooked food and unwashed fruits may increase the chances of parasites recurrence.

• Wandering around barefoot: Some parasites may enter the body through the skin while in contact with contaminated soil.

• Outside Travel: Visiting certain areas where particular parasitic infections could be present. 

• Close contact: Certain infections can also spread through coming in direct contact with a patient or using personal clothes including a towel.

• Poor sanitation: Inadequate sewage and waste disposal may contribute to exposure of parasite eggs.

Treatment For Recurrent Parasitic Infections

Treatment commonly determined by the doctor after conducting several tests and other medical evaluations. However, the treatment for recurrent parasitic infection depends on what kind of parasitic infection is being treated. Although, no single antiparasitic medicine is supposed to treat each kind of infection. Only a doctor can decide a suitable treatment after examining your symptoms and analysing medical history before prescribing any antiparasitic drug. 

Drugs such as ivermectin, albendazole, mebendazole, or praziquantel are commonly prescribed for specific infections in the patients. However, it is important to note that each drug can not be used as an alternative for one another drug. The required dose and treatment length can also vary according to the patient's age and condition.

Precautions to Reduce the Risk of Reinfection

Following are the few practical changes and habits one can implement in the routine for minimizing the risk of reinfection in the body:

 Before having a meal and after returning from the toilet, consider washing both hands properly with good quality soap.  

• Drinking water from safe or healthier sources that can prevent reinfection.

• Consider washing and peeling fruits and vegetables before having them.

• Having well cooked meat and other foods properly.

• Avoid walking barefoot in the particular areas where contaminated soil may come in contact with your skin. 

• Having trimmed and clean nails of feet and hands.

• Using clean clothes, bed, and towels when advised for a particular infection.

• Following the complete treatment plan with discipline given by the consulted doctor. 

• Avoid taking repeated antiparasitic drugs without informing your doctor. 

• Do not try to share prescription medicines with other persons who have been experiencing the same symptoms.

When Should You Seek Medical Advice?

When you experience recurring symptoms immediately seek medical attention, particularly when they continue even after getting treatment or keep returning to you. Symptoms can involve persistent abdominal pain, unusual weight loss, continuous loose stool, severe itching, weakness, fever etc. All these require medical evaluation under the medical expert team.

Another important thing is not assuming that every recurring stomach or skin symptom is associated with parasites. Several other unidentified illnesses may cause similar health complaints.

If you are already taking ivermectin and symptoms still remain and look no improvement. Consider talking with a healthcare professional rather than taking another heavier dose on your own.

 

Conclusion

Parasitic infections can reoccur due to several reasons, including reinfection, incomplete treatment, ongoing exposure, household transmission, or having parasites that require a different treatment. Understanding the cause is more crucial for patients before simply going for the same medicine or treatment. Good hygiene practice, consuming well cooked food and safe water and proper treatment can also help you minimise the risk of recurrence. If an infection keeps returning then seeking medical evaluation can be a good decision to identify what is actually causing the health problem and which treatment would be appropriate according to your condition.

FAQs

Why do parasitic infections keep coming back?

Several factors can contribute to recurrence of the infection; these may include type of infection, incomplete treatment, continued exposure, household transmission and other health factors.

Is ivermectin effective against all parasites?

No, Ivermectin medicine is not designed for treating all parasites in patients; rather it is primarily formed to work against susceptible parasites in the patient's body.

Can I take ivermectin again if the infection returns?

When infection returns do not consider repeating the drug on your own. Rather, consider consulting with a doctor for reducing systems and recovering faster.

How can I reduce the risk of another parasitic infection?

To reduce the risk of another parasitic infection you need to practice good hygiene along with following the prescribed treatment instructions given by the consulted doctor