Can cancer be contagious?


Cancer is not contagious in the usual sense and is not considered an infectious or infectious disease.The same cancer can not be transferred from one person to another (unlike some animals), breathing with the same air, sharing a toothbrush, touch, kissing or having sex.With several rare exceptions (recipients of organ transplants, mother to the transfer of the fetus, as well as several rare events), the immune system recognizes any foreign cell (including cancer cells from another person) and destroy them.

Some infections that can be transmitted (including some sexually transmitted diseases), however, may increase the risk of cancer.In addition, cancer can work in families, but instead of transmitting, this risk is associated with genetic characteristics (genetic predisposition) or common exhibitions that increase the risk.

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Contagious and cancer

Cancer It can be contagious in some types,It is amazing that not humans be a good question, you can find several different ways.

The first way to see it, visualizing what is happening if another person’s cancerous cell had to introduce our body (this should be transmitted directly,Since cancer cells can not live outside the body) of rejection that the former president of Venezuela Hugo Ch├ívez stated that he said that his enemies gave him cancer.

In the non-ethical experiment conducted in the 1950s and 1960s,Two researchers in New York actually realized some experiments in which they were injected into cancer cells in healthy prisoners and patients with cancer (recipients were not informed about this experiment) to see if he could ’cause’ theCancer. Only with an exception, the immune system of the receptor fought against cancer cells before they go beyond the nodes.

Our immune cells see cancer cells from another person, since they saw that they cause viruses or bacteria.

(In the study, the experiment was acquitted by researchers who expected to detect ways to build cancer immunity and financed the American Cancer Society and the United States and the United States .Public health service states). In another human experiment, the melanoma cell is transmitted from one person to his mother to try to cause cancer immunity, and The mother died by melanoma.

There are several other very rare exceptions, for example,The 2015 report in the New England Medicine magazine describes how the cancer cells of the Tanteworm storm invaded the body a person spreads in several lymph nodes and their lungs.While, in general, the immune system will not allow this, the man was a strong immunoscrepression due to HIV / AIDS.There were also rare cases in which cancer was transferred (through a fuel needle and tank or sliced) to work work and surgeon (sarcoma).However, in these cases, however, while cancer cells increased locally, where they entered the body, but they did not advance outside the entrance site.

The lack of contagious cancer is also better understood how cancer is being developed.Cancer cells occur after a series of mutations (in genes that control the growth of the cell) lead to uncontrolled cell growth.Even when genetic damage occurs, the human body has genes (such as tumor suppressor genes), whose protein code intended to restore damaged DNAs or eliminates damaged cells.

Another support.No contagious is the absence of epidemics. In addition, oncologists and other health professionals exposed to a large number of people with cancer are more likely to develop a disease.

Additional support for the absence of infectiousness is the absence of epidemics. In addition, oncologists and other medical workers, exposed to the effect of a large number of people with cancer, are not more likely to develop a disease.

Organ transplants

As indicated Previously, another person’s cancer cells belonging to our bodies are destroyed by the immune system.As an exception to this general rule, there were cases of cancer transmitted from one person to another through organ transplantation, and it is believed that cancer associated with transfusion can occur at about 3 in 5,000 transplant receptors .

With organ transplants, there are two factors that contribute to this risk.One of them is that instead of several cancer cells (as with a needle lever), the large volume of tumor cells is implanted in a person (from the mass in the transplanted organ).In addition, these people are usually serious immunocompromised due to drugs used to prevent deviation.

There is no evidence that cancer is transmitted by blood transfusion.In spite of this, there are restrictions on when people with cancer can sacrifice the blood . Mother to the child’s transmission

There are several reported cases of cancer transmission during pregnancy, and this can occur in three ways.

    Mother to the child: While tumors can spread to the placenta, placenta generally prevents cancer cells from achieving a child.The possibility of transmitted cancer (1 of 1,000 pregnant women is considered cancer) is evaluated only at 0.000005 percent. The transmission is more common with leukemic / lymphoma and melanoma. A rare tumor that occurs in the placenta.The tumor can be distributed to both mothers as for a child, and is the only case on the serial transfer of cancer (from the placenta to the mother, and after the mother to the recipients of the organs,Failure of this mother) Didded

Infectious cancers in other types

Now cancer

is transmitted between the members of eight different species.It is believed that the reason for which this can occur, in contrast to people, is associated with the lack of genetic diversity (genetic endogamy), so that the cancer cells of another member of this species are not recognized as abnormal.These include:

  • dogs: the dogs transmitted from a veneral tumor can be transmitted sexually or through direct direct contact.
  • The Tasmanas Demons. Another, bite.
  • Invivilves.
  • Hamsters: There are also reports of reticulum sarcoma transfer between hamsters in ancient studies, as well as the possibility of mosquitoes that are vector in transmission.

Infections associated with cancer

Some infections that can be transferred from person to person lead to cancer.However, in these cases, this is not so contagious, but an infection that may or may not (and in most cases does not lead to cancer.

Infections with these microorganisms are common, while the raks that arise as a result of infections are not.In addition, most cancer are of multifactory origin (have many reasons), and other factors, such as the impact of carcinogens, immunosuppression, genetic factors, lifestyle and much more, can be combined with infection to cause Cancer.

Infections can lead to cancer in different ways. Some can cause inflammation, which leads to cancer (due to an increase in cell division of the cells involved in repair), while others can cause immunosuppression.However, others can damage DNA (cause mutations) directly.

In the United States, it is believed that it is 10 percent of cancer is associated with infectious diseases, although This number increases to 25 percent around the world.

Viruses related to cancer include:

  • papillomavirus (HPV) : HPV is the most common sexually transmitted disease and is associated with cervical cancer, anal cancer, policy cancer,Cancer vagina and head and neck cancer. In most cases, HPV infection is independent, but with constant, it can cause inflammation and cancer. Not all VPH strains are associated with cancer.
  • Hepatitis B B virus and Hepatitis with viruses : like hepatitis B and C-related liver cancer and together are the biggest cause of liver cancer around the world.
  • Epstein Carr (EBV) Virus: EBV is best known because it is the cause of mononucleosis, although it has also been associated with several cancers. It is believed that it can play a paper by 40 percent to 50 percent of Llesh Hodgkin.While rarely in the United States, it is also associated with Burkitt’s lymphoma, a nicaring a carcinoma, stomach adenocarcinoma and much more.Although 90 percent of people are considered infected, only a relatively small number develops cancer.
  • HIV / AIDS: There are several types of Cancer associated with HIV / AIDS related immunosuppression.
  • Herpesvirus Herpesvirus Type 8 (HHV-8) or Kaposi Sarcoma Herpes Virus most often leads Kaposi’s sarcoma in people with HIV. . Relatively common, cancers are not. .

Cancer-related bacteria include:

The parasites associated with cancer include:

  • Hepatic fluids: two different liquids The liver is associated with bile duct cancer and is, above all, in East Asia.
  • Schistosomiasis : The worm, what causes this disease, is associated with bladder cancer.

In addition to these specific organisms, microorganisms in or our bodies can be associated with a growing or reduced risk of cancer.For example, the microbiome of the skin (normal bacteria living on the skin) can be associated with the development of skin cancer, and good bacteria Intestine can reduce the risk of lymomania .

Swaps operating in The family

Genetics plays a role in cancer, which may seem causing (they run in the families), but despite this group of cancer,Cancers do not apply directly from one person to another.

The presence of a genetic predisposition does not mean that a person receives cancer. Hereditary cancer About 10 percent of cancer as a whole (the effect of genetics may vary depending on the type).Many of the mutations of the genes associated with cancer (for example, BRCA mutations) occur in the genes of a despicable contemporary .These protein gene genes repair DNA, which were damaged or, on the other hand, eliminated the cell before it becomes a cancer cell.In this case, the presence of a mutated gene does not cause cancer, and interferes with the ability of the body to restore damaged cells that were damaged by the environmental impact and much more.

Even without genetic predisposition, a group may occur cancer in families.This may be due to general lifestyle habits (such as smoking or dietary habits), the impact on similar carcinogens in the environment, for example, radon exposure in the house .Cancers can also occur due to the effects of viruses (such as hepatitis B), which is transmitted among family members.

Proximity for those , Cancer

is clear that cancer itself can not be transmitted, touching, kisses or sex, therefore (with the exception of several precautions) is usually normal,To be simply the intimate feel is recommended.

Intimacy can not only help a friend or love a better certificate with his illness, but he can weaken any feeling of isolation,It can be during the failure of cancer therapy

for those who have infections associated with cancer, as well as those living with cancer, several precautions are important.

Precautions to prevent the distribution of infections associated with cancer

HPV, sexually and hepatitis B and c It can be transmitted, well, as HIV, can be transmitted sexually, as well as a blood contact.Hepatitis B extends much easier than HIV, and even sharing a toothbrush can lead to transmission.

Safe sex includes the use of condoms and much more. Precautions Blood is important with hepatitis B, C and HIV.Immunization of hepatitis B is the best way to prevent disease.

Sexual precautions for the treatment of cancer

For those who pass through chemotherapy, may require precautions for Protect both partners.

People with cancer:

Favorite of those with cancer:

  • Chemotherapeutic medications may be present in saliva, sperm and vaginal discharge.Wash the dear oncologist can be recommended to avoid sex shortly after chemotherapy infusion, but may vary.The women who are or may be pregnant should talk to your partner’s oncallot on the possible impact and time.
  • With some types of radiation, such as internal radiation (brachytherapy) or iodine radioactive treatment, your radiation oncologist can help avoid close contact care, especially if you are pregnant.

Word of the information of the recipient medications

Cancer is not contagious, and you should not stay from friends or loved ones with cancer.In fact, offering your support and being close, it is more important than ever, and some studies even found that the best social support is related to better survival.

If your favorite can have a virus associated with infectious disease, learn about the disease and any precautionary measure you can take.You should also talk with your oncologist about any risk to you or your partner associated with proximity during treatment.

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