Bat Encounter: Neurological Symptoms and Rabies Concerns - Internal Medicine

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Hit by a bat?


Last month, on June 18, I was riding my scooter and got hit by a bat.
When I got home, I immediately checked myself in the mirror because I remembered it hitting my face, but it seemed like there were no bites or scratches, and no wounds.
However, for the past week or two, my right calf has been cramping and very painful.
Additionally, I have been experiencing sharp pain in the nerves of both my hands, as well as similar sharp pains in the thighs of both legs.
The soft tissue in my mouth and around my teeth also feels painful.
I would like to ask if the nerve pain is related to rabies symptoms.
I have consulted doctors in the infectious disease and neurology departments at other hospitals, but I still feel worried and anxious.
I wanted to get a blood test, but the doctors said that a blood test wouldn’t be able to detect it, and they all said it was unrelated and that I might just be overly anxious.

Xiao Xiao, 20~29 year old female. Ask Date: 2017/07/18

Dr. Liao Zhongxin reply Internal Medicine


Dear readers:
Regarding the incident of being hit by a bat while riding a motorcycle, here is the response:
1.
Hendra virus infection was first identified in Hendra, Australia in 1994, and Nipah virus infection was discovered in 1999 in the village of Sungai Nipah, Malaysia.
However, there are currently no related cases in the country.

2.
In 2013, the Council of Agriculture announced that rabies virus was detected in wild ferrets, rats, and puppies in the country.
This June, 84 positive cases of rabies were confirmed in Tainan City, Baihe District, Hualien County, Yuli Township, and Chiayi County, Fanlu Township.
As long as you are not in the aforementioned areas, there is no need to worry.

Thank you!

Reply Date: 2017/07/18

More Info


Your concern regarding the encounter with a bat and the subsequent neurological symptoms you are experiencing is understandable, especially given the potential risks associated with rabies. Let’s break down the situation and address your questions.

Firstly, it’s important to understand that rabies is a viral infection that primarily affects the central nervous system. It is transmitted through the saliva of an infected animal, typically via bites. In your case, since you mentioned that you did not sustain any visible wounds from the bat, the risk of rabies transmission is significantly reduced. However, it is crucial to consider that bats can carry rabies, and any potential exposure should be taken seriously.

The symptoms of rabies typically manifest in stages. Early symptoms may include fever, headache, and general malaise, which can progress to more severe neurological symptoms such as confusion, agitation, hallucinations, and paralysis. The neurological symptoms you are describing—muscle cramps, pain in your limbs, and facial discomfort—are not typical early signs of rabies. Instead, they may be indicative of other conditions, possibly related to anxiety or stress following the incident.

Your experience of muscle cramps and pain could be attributed to several factors. Stress and anxiety can lead to muscle tension, which may result in cramps or spasms. Additionally, if you have been more physically active or tense since the incident, this could also contribute to your symptoms. It’s also worth noting that neurological symptoms can sometimes arise from peripheral nerve issues, which may not be directly related to rabies.

Regarding the blood tests, it is true that standard blood tests are not effective for diagnosing rabies. The diagnosis is typically made through clinical evaluation and specific tests on brain tissue or saliva from the animal involved. If rabies is suspected, post-exposure prophylaxis (PEP) is recommended, which involves a series of rabies vaccinations. Since you did not have a bite or scratch, and if the bat was not exhibiting signs of rabies, the likelihood of needing PEP is low.

Given your ongoing symptoms and concerns, it would be advisable to follow up with a neurologist or a healthcare provider who specializes in neurology. They can conduct a thorough evaluation, including a neurological examination, to determine the cause of your symptoms. They may also recommend imaging studies or other diagnostic tests to rule out any underlying conditions.

In summary, while your encounter with the bat raises valid concerns about rabies, the symptoms you are experiencing do not align with typical rabies manifestations. It is essential to address your anxiety and seek further medical evaluation to understand the cause of your neurological symptoms better. Remember, it’s always better to err on the side of caution when it comes to health concerns, so don’t hesitate to seek further medical advice if your symptoms persist or worsen.

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