The cat will need to be placed in a carrier so that it can be transported to the vet for an important health checkup. You need to allow time for the cat to get accustomed to the carrier.  Leave the carrier open in your house so that the cat can explore it on his own. Try placing his food dish in front of the carrier, so he will be more likely to investigate.  Move the food to inside the carrier so that the cat will step inside. If you are able to eventually handle the cat, bring it to the veterinarian as soon as possible. You can get its health evaluated, get vaccinated, and have any other treatments that it may require. Vaccinate the cat in order to protect it from various diseases, such as feline leukemia and others. Ask your vet which vaccines are recommended. Since the cat has likely been outside its entire life, it will need to be treated for and protected against fleas and worms. Your vet can apply flea and worming treatments on the spot, or she may give you a recommendation of flea and worming treatments you can administer at home. One of the best ways you can help is to have the cat spayed (female) or neutered (male) to prevent the birth of feral kittens. The vet will tip its ear, which is a painless procedure that is administered when the cat is under anesthesia. The very tip of the ear will be trimmed off. This serves as a sign that the cat has been spayed or neutered.

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Write a summary of the previous text in Vietnamese:
Giúp mèo làm quen với lồng vận chuyển. Đưa mèo đến phòng khám thú y. Hỏi bác sĩ về phương pháp diệt rận và tẩy giun. Đưa mèo đi triệt sản.